I have a PX4 SC in 9mm and a full size .40 and they are both great and the recoil is very manageable. I prefer to shoot the .40 as I have large hands and the extra grip size is a plus not to mention the longer barrel makes it extremely accurate. I have the snap down extenders on the SC in 9mm which makes it acceptable however my wife has taken over the SC for her nightstand weapon. I would say that since both are bulky, have never considered carrying for SD (LC9 gets that duty).
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