Dave, I still tie them the way I wrote up the original instructions (of this take-off of the gurgler) as a FOTW here on FAOL, and don't seem to have the floating problem. That said, I almost always use a size 8 and perhaps that carries a bit more foam than 10 or 12. It does ride low, so perhaps it is just a preference. Also, as long as you don't mind the butt hanging low, just leave a bit more foam for the head (upper lip?) when you cut off the foam strip and finish the fly. That's an idea, anyway.

Peter F