Man is that Fermcap good or what?! I bought it after reading about it on this board. I had the easiest brew day on Sunday I have ever had!
I brewed 2 five gallon batches, had no boil overs and was able to do some other stuff around the garage during the boil.
I'm fermenting in two 6 gal BB's and there is only about 1/4-1/2" of Krausen in both. WOW! This stuff really works and the yeast is crankin'. If you haven't tried this stuff, you should.