I have never liked the "UH/LH" distinction of the late 80's onward USN. I've never liked the similar distinction in a few nato allies. It's confusing, and a poor way to designate ranks, IMO. Your lower 3rd proposal rings even more broken.
Canon says that there are 3 grades of admiral, in a literal text sense. CG has always been IMPERIAL CENTRIC; all non imperial careers are by adjustment from them (most minors, plus pre AM series), or replacement of them (AM series). Therefore, all references to other ranks of admiral must be alternate titles for the same grades. (Something for which the US Military is notorious on the enlisted level.)
You are arguing that they are real subgrades of the O8, IE:
O8.0 = Rear
O8.3 = Vice
O8.6 = Fleet
this still means any Rear who does somehting special skips straight to O9. And that something special need not be, of need, job related.
That is far less likely than the survival of solomani alternate titles, and/or inconsistant decision making by the GDW staff, and/or publishing the SMC and/or 5FW with US ranks for the primarily US audience's understanding.
Canon (MT PH, pg 83) Mentions Norris negotiating with the Zhodani. This doesn NOT prove he's sector duke. It proves he's got treaty authority. That he doesn't/can't give orders to Santanocheev clearly indicates he's NOT the sector duke, Or that Santanocheev is making a careful and powerful statement that the nobility needs to keep their mitss out of the war.
We actually know little about santanocheev, other than he's got at least (8-1)*4-3 years in service by 1105:25 years minimum, in the 7th term, puting him as a vet of the 4FW. We know he commands an intell HQ. (If it were not an HQ, central command, or similar major grouping, it would be commanded by a field grade officer, not a flag.) We know he plays power politics with the much younger norris (4 terms, according to MT sources, or 16 years, plus later service as a noble... at 16 years by 1098, he goes into service just after the 4FW.) We know Norris grabs a warrant from a red-zoned world, and relieves santanocheev.
We know that Regina is capital for two subsectors, and is a hub of operations.
We know that the supporting depot for the marches is in another sector. (and thus, the Personell and Training Center is in Deneb.) Depot may not be the official HQ, but it is the central trianing facility and maintenance facility for the IN in 4 sectors (2 of which amount to 2 subsectors apiece). While this is not clear eveidence of a domain HQ, it is clear evidence of a domain-wide personell system, and probably also maintenance. It may not be an operational command, but it is clearly the logistical command center for the domain's navy.
Regina holds a forward command presence for several services: Both the IN (and hence IM) and IISS have extensive bases in system.
Santanocheeve, commanding the 5FW, gets to ignore Norris... so he obviously is the sector authority for the IN, by hook, crook, or ⌧. Norris is obviously not the Sector duke, or santanocheev could not have ignored him so cleanly. Likewise, if the sector duke had requested more forces prewar, they would likely have been drawn from other places in the marches. Instead Norris asks, and is IGNORED... and can't draw them from elsewhere in the sector.
Norris is clearly NOT the sector duke. Even if Regina is the sector captial (which it is not in 1105, as there is none).
Mora: Mora is far from all the action. It's not part of the spinward main, nor is it near the center of the imperial part fo the sector. (Regina is often closer routewise for XMails...) D3elphine is clearly a powerful presence, but if she was sector duchess, Norris would have had to answer to her, and she'd have had more chance of becoming Archduchess. No, I think that the 1111 date for it being captial is probably wrong; The earliest reference I've sen is 1116, after Norris is Archduke, and making the secotr capital Mora makes sense defensively. (MT maps are Ca 1116 OR LATER). All the other maps I've laid hand to are 1105 (Delux CT (1105), Starter CT, Sup3 10pr), or during the war (1107). All lack a defined sector capital.
Canon says that there are 3 grades of admiral, in a literal text sense. CG has always been IMPERIAL CENTRIC; all non imperial careers are by adjustment from them (most minors, plus pre AM series), or replacement of them (AM series). Therefore, all references to other ranks of admiral must be alternate titles for the same grades. (Something for which the US Military is notorious on the enlisted level.)
You are arguing that they are real subgrades of the O8, IE:
O8.0 = Rear
O8.3 = Vice
O8.6 = Fleet
this still means any Rear who does somehting special skips straight to O9. And that something special need not be, of need, job related.
That is far less likely than the survival of solomani alternate titles, and/or inconsistant decision making by the GDW staff, and/or publishing the SMC and/or 5FW with US ranks for the primarily US audience's understanding.
Canon (MT PH, pg 83) Mentions Norris negotiating with the Zhodani. This doesn NOT prove he's sector duke. It proves he's got treaty authority. That he doesn't/can't give orders to Santanocheev clearly indicates he's NOT the sector duke, Or that Santanocheev is making a careful and powerful statement that the nobility needs to keep their mitss out of the war.
We actually know little about santanocheev, other than he's got at least (8-1)*4-3 years in service by 1105:25 years minimum, in the 7th term, puting him as a vet of the 4FW. We know he commands an intell HQ. (If it were not an HQ, central command, or similar major grouping, it would be commanded by a field grade officer, not a flag.) We know he plays power politics with the much younger norris (4 terms, according to MT sources, or 16 years, plus later service as a noble... at 16 years by 1098, he goes into service just after the 4FW.) We know Norris grabs a warrant from a red-zoned world, and relieves santanocheev.
We know that Regina is capital for two subsectors, and is a hub of operations.
We know that the supporting depot for the marches is in another sector. (and thus, the Personell and Training Center is in Deneb.) Depot may not be the official HQ, but it is the central trianing facility and maintenance facility for the IN in 4 sectors (2 of which amount to 2 subsectors apiece). While this is not clear eveidence of a domain HQ, it is clear evidence of a domain-wide personell system, and probably also maintenance. It may not be an operational command, but it is clearly the logistical command center for the domain's navy.
Regina holds a forward command presence for several services: Both the IN (and hence IM) and IISS have extensive bases in system.
Santanocheeve, commanding the 5FW, gets to ignore Norris... so he obviously is the sector authority for the IN, by hook, crook, or ⌧. Norris is obviously not the Sector duke, or santanocheev could not have ignored him so cleanly. Likewise, if the sector duke had requested more forces prewar, they would likely have been drawn from other places in the marches. Instead Norris asks, and is IGNORED... and can't draw them from elsewhere in the sector.
Norris is clearly NOT the sector duke. Even if Regina is the sector captial (which it is not in 1105, as there is none).
Mora: Mora is far from all the action. It's not part of the spinward main, nor is it near the center of the imperial part fo the sector. (Regina is often closer routewise for XMails...) D3elphine is clearly a powerful presence, but if she was sector duchess, Norris would have had to answer to her, and she'd have had more chance of becoming Archduchess. No, I think that the 1111 date for it being captial is probably wrong; The earliest reference I've sen is 1116, after Norris is Archduke, and making the secotr capital Mora makes sense defensively. (MT maps are Ca 1116 OR LATER). All the other maps I've laid hand to are 1105 (Delux CT (1105), Starter CT, Sup3 10pr), or during the war (1107). All lack a defined sector capital.