Re: Multiple small port holes for bd instead of one that's bigger?
Having holes evenly all around the head could be benefitial in that the head will be vibrating more evenly across the entire surface, which probably results in a more even tone and longer sustain. Just a theory...
The best solution however, is to not bury the damn beater. It doesn't take more than a month to completely revamp your foot technique, and play without burying the beater without even thinking about it. You'll have more options in tuning, and you get a lot more vibration between the heads = more sustain and more low end.