After listening to many such critters on you tube and the Logarhythm I have, I have come to the conclusion that most if not all have the same problem. Without added "special effects", they do not sound like basses to me but a foot tapping a hard piece of wood. So, here's my question for you percussion "Experts". My idea is to place piezo pickups, likely the jacks that come with 3 disc, on a thinner "soundboard" a certain distance below the thicker top that the food stomps on. Just my theory, but I wonder if I'm on to something and wonder how far below the top it would need to go? wouldn't really need any bracing but left to vibrate freely like a guitar top. Would it be based on cubic square inches/feet? I'm thinking 2" minimum, but then I'm no acoustics expert. Bottom open? closed? Small sound holes either above or below the soundboard? I'm thinking 4" total thickness max? 1 1/2" rubber feet on braced corners?