John:
What brand dance belt are you using? No, let me guess... a Capezio model 26 (the non-quilted one). The Capezio's small flat pouch just won't work if you've got one of those oak tree sized units.
The Doctors prescription: try a different brand, or a larger size, or both. The MStevens is stretchy enough to accomodate larger equipment. KDDids is hard to find, but has a large pouch also. If you've read my other posts in this forum, you already know my opinion of substituting a jockstrap, so I won't repeat myself here.
Good luck, happy dancing, and let me know if this solves your problem.[/i]