I have recently bought a S&W model 637 and would like to take the side-plate off to give it a good cleaning. It has only had like 100 rounds or so through it, but since this is my carry gun, I plan to be very anal about its care. I have never taken anything like this apart, and was hoping for a little advice on disassembly and cleaning. i.e.-is a spring going to pop out on me, should i avoid touching any particular parts, etc? Sorry if this is a dumb question, but i'm new to this, so just want to know how to do this right, and avoid taking something apart i cant personally put back together. any help is apreciated. thanks.