I do this with my bumGenius if I dry them. It makes a HUGE difference.
Our BumGenius is often still wet. It velcros itself into weird configurations in the dryer. If I had a whole dryer full of them, it would dry until they were all dry, but I only have one so sometimes I have to hang it to dry for a few hours. It's not a big deal, though. We have a handful of SuperDos, so it's nice if all or most of them are actually dry instead of hanging all over the room. The LoopyDos are always dry, but they never seem to be enough for my kiddos.
Comments make me happy; thanks for speaking up!