Got my Bare ATR HD with the forearm dump on it. Since I've never dove with a shoulder or upper arm dump I couldn't say which is "best", but the forearm position allows dumping of gas if needed without getting out of horiz position and just seems more intuitive to me.
What did you guys do the Dive Concepts site? It wouldn't come up for me.
What did you guys do the Dive Concepts site? It wouldn't come up for me.