FlavioSSA wrote on Jan 20^th, 2012 at 1:22pm:

Is it a good thing to reinstall the tweaks available here in the forum after 1.1 install? Thanks!

You mean the ones from Collin and HvyEng? Yes, I'm using the aircraft.cfg and air file of theirs since the plane would be way too powerful with the original 1.1 settings. But that's personal preference since the plane is a fun line product, so maybe some folks have fun chasing Concorde.  ;D

I think the rest of the mods isn't needed in 1.1. Only the aircraft.cfg and air file are recommended. Back up the 1.1 ones and try it. Reverting back is easy then.