Hi guys and girls, I just took delivery of a custom pickguard from The Pickguardian - it's a 3 ply black/white/black. I've decided to install a coil tap mini toggle switch on the bass, and I forgot to ask Tony @ Pickguardian to drill a suitable hole for it. I've never drilled a pickguard before. Just wondering, is there anything to watch out for?? Any "tricks of the trade" I should know about beforehand? Thanks in advance.