I love FermCap for controlling boilovers. I add a few drops (less than recommended) as the wort comes up to boiling. It allows me to do other things during the boil to shorten my brew day.
Here's what I'm wondering:
The directions say to add a drop per gallon at the "start of fermentation". Does my boil addition count for that? Can I just add the recommended amount for my final volume to the boil and trust that all of it will make it into the fermenter?