Bob, I have the same Coral as you. I do not really belive it's the Colt either. It looks simular but has a very soft base. But anyhow I just use sewing wool and tie it nice and firm... too soft and she floats away... too firm and you got another frag
. Done this maybe 10-15x's with much success. The jabbing it with a toothpick for this Coral is totally unnecessary.