thanks everyone, i've fully decided on the rhinoraxx. the ball room rack tubs have a much larger footprint than the AP CB70's, so i can take comfort that all my BP's can be comfortable no matter how large they get - the rhinoraxx ballroom rack comes with tubs that are nearly 3 feet long! they are going to be pricey for sure but it's cheaper than buying a rack and then finding it to be too small somewhere down the line. thanks for everyones input! it will be quite awhile before i order them, but when i do, there will be pics!