Re: Changing heads question
Actually, if this is the resonant side we're talking about, it's probably just your snare beds that you're talking about. There will always be slight cuts in the reso side bearing edge to allow a greater contact with the snare wires to the head itself. As such, there would be the gaps on the drum that allow paper to fit underneath.
If it isn't your snare bed, then yes, you have problems.
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