It provides a solid grip to the gun. I actually shot better without the extension because it's the way I practice. If I took the time to get to know the way it shot with the extension on, I'm sure it wouldn't be difficult to become proficient. I have NOTHING but good things to say about the feel, though. The product is solid.
Pros: The extension feels great in the hand and provides a solid grip
Cons: I've gotten so used to shooting without the pinky, it was more difficult to shoot with the extension on.
This review was written in the old system and had content requirements that are different than reviews written today.