I posted a question about this a long time ago, but I think that thread was lost.

Someone recommended I try a 50/50 mixture of gum paste and MMF for bows. Does this dry faster than 100% MMF? Is breakage better?

Yes. it will dry MUCH faster than 100% MMF. It also dries much harder which helps make it a lot more durable.

I use all gumpaste as it dries faster and harder. I love gumpaste because you can roll it really thin.