[Guest]

Ok thanks for you Opinions and I have gone for U.I Version 1.1 the 1.2 the 1.2.5

The U.I. are all 4.09b1m game version. As long as you don't fly online, you can use anything you want.
BTW, there is no U.I. 1.2.5
It never happened.

It's in HSFX 4.1

Planemad, as I had said, HSFX is the best option IMHO if you want to get back to current times regarding mods.