I'm in the process of building a couple of cabinets and inter to use shelf pins to support the shelf. The cabinets are being painted, should I drill the holes before or after I paint? If I drill before will the paint stop me from inserting the pin? Has anyone got a bit of advise I'm just about to paint and I keep picking up my template and drill ready to attack and then stopping myself at this rate I'm going to develop a RSI!