Got the backplate in the water today - TOTALLY comfortable. Just need to loosen my shoulder straps up a bit - my suit is thicker than I thought when I adjusted it for fit.
#1 PROBLEM: Top bolt in the backplate/wing fell out, so when I inflated the wing on the surface at the end of the dive, it pushed the tank off the backplate, popped the buckle open, and I'm left with a 200m surface swim trying to hold a tank in one hand and a regulator in the other. The bolt for the top hole HAS to go through the harness webbing, as the webbing crosses the backplate DIRECTLY over the bolt hole, and there is even an eyelet in the harness webbing for this. The supplied bolt was simply too short, and didn't have enough thread engaged to grab and stay put. I'm not talking about the bolt going through the tank cam strap, but the backplate harness itself. There's no way to move the harness webbing out of the way of the hole - that's where it lines up.
Anyway, upshot was my tank slid out. Screwed up an otherwise excellent dive at Pebble Beach (yeah, the golf course) that included some seals and a leopard shark.
So I'm looking at an STA (the extra weight would help as well), my question is, is the STA (apart from having decent bolts) going to help hold the tank more securely? My Pioneer wing has the integrated STA, but that relies on just wedging the tank against the wing material for stability, rather than in a metal "groove" so to speak.
Thoughts?
PS Interesting prelude to the dive was another diver coming out of the water on a kayak rather stressed about his 3 buddies who had somehow all ended up stranded on some rocks with their kayaks because of waves or swell - so he calls 911, police show up, and he and his stranded buddies are nowhere to be found - police are asking US if we're alright and need assistance, and the Pebble Beach staff are going nuts about lost divers off their private beach (where it is permitted to dive with a reservation). No idea if the other divers got out okay or what. Thing was when we were in the water (within 30 minutes of this happening) conditions where about as ideal as you could hope for a shore dive. Guessing and hoping they got off the rocks and kayaked around the next point to safety.