I voted "other." I think Traveller needs more low-tech ships, by which I mean ships that are only barely jump-capable. What kinds of difficulties would those types of ships have had to have overcome? How did they deal with no [fill-in-high-tech-here]? How can an SDB compensate for low tech weaponry?
I think I just like the challenges.
Well, in MT...
Deep-system capable T-plates are not TL9... they're TL11. (ones that work only within 100 diameters of a body are TL9 - "Antigravity
iikewise, inertial compensators and Gravitic Artificial Gravity art TL10...
So, no continuous-burn paths, freefall when not under acceleration, hard maneuvers make everyone strap in or bounce off the walls... Puts the GG's at jump range, not n-space.
Chem rockets for emergency maneuvers become a good idea, too - because the MT errata cuts the AG thrusters off sharply. (Too bad back in the day we had to wait for Hard Times to get the chem rockets...)