On realistic digitigrade feet

I've been wanting to give my next project some realistic digitigrade legs with a nice, detailed sculpt on the feet up to the ankle (which on me, would be up to my mid-calf- eep!) and because I want those little intricacies of shape to be visible, I want to spray the padding down with glue to make sure the fur hugs the shape nice and tight and shows off the detail.

-but-

I've heard there were difficulties attached to cleaning a foam-padded bodysuit. Many seem to want to have removable padding or polyfil padding on their bodysuits, and I've been wondering what specific reasons there are for this- Does spray adhesive or hot glue or whatever people are using break down in the wash? Does foam trap and hold bacteria and other little critters particularly well? Are there suggestions on how I can have my fine-sculpted feet, but still be able to wash everything- aside from making the feet up to the ankle one whole separate piece?

Also, has anyone ever attempted realistic 3D pawpads on feet? I've looked -EVERYWHERE- and I have not yet found a suit with 3D pads on the feet. What I mean by "3D pawpads" is that the pawpads are actually large, sculpted shapes that your foot is standing on. ( http://images.jupiterimages.com/common/detail/71/37/23123771.jpg ) I know this kind of foot wouldn't hold up stomping around for hours and hours, y'all don't have to tell me that, but I'm curious to know if anyone has tried it before.

Thanks a bunch, fursuit!