Ok, new hammer spring came today, and I am currently looking through the instructions and having problems with the initial disassembly. The 2nd step is as follows: Drive out both polymer frame pins (do not drive out the steel pins). First of all, which side do I approach this from? I've tried both sides, and the pins won't budge. Secondly, what should I be using to punch these through? I'm using an allan wrench driver about the right size.