I know that the FS designation is for the changes that they did to stop the slide from striking the user in the face. But if I bought a 92F instead of an FS, should I worry? Are there other features I should worry about?
Don't worry about it. Beretta added the slide-capture feature to ease the fears of nervous types, in light of the military's slide-breakage issues. Don't stress or abuse your gun the way they did and you'll be fine.