Has anyone had success with FBCT using Sugarshack's BC? Also, how long can you leave it in freezer? Day before placing on cake?

Thanks!

I haven't used Sharon's icing but I can't see why it wouldn't work. I use an all crisco buttercream for it and have never had a problem.

You can leave it in the freezer as long as you like. If it is going to be in there for some time just wrap it well or put it in a ziplock bag to keep freezers odors out.