Ok, forgive me if this sounds stupid, but I've been seeing this enough to make me wonder about this. Why do so many people press check by wrapping their thumb over the top of the slide between the chamber and front sight to pull back the slide a bit? I've always just used the slingshot grip on the rear of the slide. Seems to me this eliminates the need for front cocking serrations, and keeps your hand further from the muzzle (yes, I know...finger off the trigger is key).

Am I missing something here that I should try it?