S!
Catalyst 10.3a do not fix blocky text in IL-2. Performance of these drivers is good though, even noticed a strange thing when comparing them with and without atioglxx.dll in IL-2 folder. Results below on 1920x1200, Perfect settings.
10.3a with 9.10 dll file in IL-2
Min 22fps Max 304fps Avg 95fps
10.3a without dll file in IL-2
Min 22fps Max 284fps Avg 95fps
So we still have to wait a bit, maybe in 10.4's. And now with these drivers, file the feedback form again