In this same way (but with no so high/low DMs, I'd use the DMs for TL as MgT uses for stats.
Looking at it, aside from being easy to implement, gives some curious reusults:
- TL 0-2 would be a DM of -2
- TL 3-5 would give a DM of -1 (curiously enough, TL3 represents renaissence, so the beggining of science as we know it)
- TL6-8 would mean no DM (curiously enough again, TL6 is WWII, so antibiotics)
- TL9-11 would mean +1 (TL9 means beginning of cold sleep and probably improved use of stem cells)
- TL12-14 would mean +2 (TL12 (Broad antitoxins)
- TL15 would mean +3 (anagathics)
NOTE: TLs are based on MT tables