Hello all, I just recieved my lyman gpr kit today and had a few questions.I was looking at the instructions and it starts with draw filing the barrell to remove any tool marks from it.I looked over the barrell and didnt see any marks on it so is this still necessary,also what is the best way to remove the pins that hold the forend cap and entry pipe?As this is all new to me any tips would be greatly appreciated. Thanks Brandon