Question - imagine you’re considering a port hole for your bass drum. Now imagine the same bass drum has a rack tom mount, but has NO rack toms in it. So there are 2 holes on the top of the bass drum. Wouldn’t air escape through those holes essentially the same as a port hole (aware of the fact they’re in different places, but...). If one has a bass drum with a rack tom mount and no rack toms, would a port hole in the reso head be redundant, or affect the sound at all? Does the empty rack tom mount affect the sound? Thanks for your help.