If you want to have a better chance of getting your stomach muscles back in shape quickly after a pregnancy, my advice would be to forego the belly support band, unless it is really necessary. Going without the band will keep your muscles working to do the job that is rightfully theirs – supporting your growing belly and the baby inside.
Sure, you might be a little more sore than with the belt, but that’s a good thing, because it means your muscles are still able to work, leaving them in better shape for labor and afterwards.
We like to solve problems these days, and sometimes we create problems that don’t really exist, just so we can have a solution we don’t really need. I feel that way about pregnancy support bands, and think we would be better off by not using them at all. As with many modern “solutions,” women survived pregnancy and motherhood for hundreds of years without them, so perhaps they are really not so necessary after all.