I had originally been looking that the Zen deluxe because of hearing so many stories from people having trouble getting their single piece harness adjusted properly. After a lengthy phone call with Ryan I decided instead to opt of the standard version with the upgraded, limp webbing. After initial adjustments in my living room I dove one time and had to male only a small.adjustment in the crotch strap.
I never feel this system on my person except walking from my seat on the boat to the edge to jump in. It keeps you in whatever position you want and if horizontal, it keeps me perfectly level. I opted for the aluminum backplate. With 3mm suit, shark skin vest and shark skin hood I require zero lead and actually am probably still a few pounds negative.
I'm 6' 0" and 200 lbs with 10ish% bf.