I've just installed FSX after a break in simming and I'm getting back up to speed. For a number of reasons I've decided to stick with the virtual cockpit only from here on out.
With the frame-rate issues in FSX (made worse by me sticking with the virtual cockpit) I'm looking for some recommendations for add-on aircraft that have the least impact on FPS. So far the only thing I've installed is the Flight1 172 and although it fluctuates I seem to get about a 5 FPS average hit in frame rates. I mainly like to fly IFR, so instrumentation is an issue. I prefer pistons, but turboprops or jets are not out of the question.