Which ever of the dumps you're using during the dive, be certain that dump is at the high part of the bc where the bubble will naturally migrate. Head down, butt dump. Head up, shoulder dump.
---------- Post added January 22nd, 2014 at 09:00 PM ----------
My most used wing is a 18# Oxycheq. If I'm really layered up in the winter, I'll use a thirty which is still probably too much most of the time. I was certified without BC's. It was 6 or 8 years before I ever used one. I was taking an AOW class and borrowed one along with an octopus. My deep dive was the first time I ever did a pesky safety stop. A lot of my friends still dive without them. Of course they are still using 2200 psi steel 72's as well.
---------- Post added January 22nd, 2014 at 09:00 PM ----------
My most used wing is a 18# Oxycheq. If I'm really layered up in the winter, I'll use a thirty which is still probably too much most of the time. I was certified without BC's. It was 6 or 8 years before I ever used one. I was taking an AOW class and borrowed one along with an octopus. My deep dive was the first time I ever did a pesky safety stop. A lot of my friends still dive without them. Of course they are still using 2200 psi steel 72's as well.