Already? I have a Kimber Pro CDP II. The guys at the local gun shop 'cough' when they hear that the manual says the recoil spring should be replaced after 800 rounds. The stock spring is 22#. I just replaced it with a 20# Wolff instead of waiting for them to order the 22# spring. The guys say that a 22# spring is a lot. Did I make a mistake? What determines spring weight and how does a weaker/stronger spring effect the gun's operation?