Re: Cutting a hole in the bass drum...How big, methods etc...
I just cut one in my reso head today. Easy and cheap way to do it:: Trace a CD with a razor, they are about the size you want and perfectly round. You can tape it down in the middle hole to hold it in place if you like. Of course this way is free, if you want it done nicely it's probably better to buy one of those kits that come with the hole reinforcement things.