I have CFS but could never figure it out. It was a little too realistic for me. I'll have to dig around my stuff to see if I can find it again now that I have a joystick. Try checking out
www.subsim.com. It is for Silent Hunter but at the bottom section of their forums is a section for flight sims. The guys in there are very hardcore and can answer any of your questions. There are guys in there that play both IL2 and CFS3.