With FSX, or any FS in general, one perennial subject is of coarse the issue around frame rates, with a 100 people out there having 100 opinions.
I keep reading whatever I can on the subject, and recently came across this interesting article on the web.
http://www.100fps.com/how_many_frames_c ... ns_see.htm
The author of this article makes reference to some military tests: I have read on this subject elsewhere as well.
" Tests with Air force pilots have shown, that they could identify the plane on a flashed picture that was flashed only for 1/220th of a second."
From the same author another interesting read on interlacing.
http://www.100fps.com/
Jan