For rules, I use a CT with bits from MT. For setting, depends on my players, but most of the time it is the OTU around 1105ish. With 'lots' stolen from what ever books I happen to be reading at the time.
Will have to dig up MTU campaign based on the "Foundation Novels" by Asimov and post it in the fLibrary. CT with the clock set around 1250 but NO rebellion or virus. Just a slow rot from the center out. Every time I re-read that series, I find more things ‘borrowed’ for the OUT.
I agree with blackirish56, recover time for TNE was far to short.