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OK, I can respect that. However, I don't understand it.
I'm going to go below the surface where I can't breathe - and probably not survive - without my gear in working order. Who do I trust to set up my gear? Me, whose life depends on the gear having been assembled and set up properly, or some - more or less - underpaid guy who has a bunch of other people to cater for? Bottom line, if I ever find myself below 30m of water without any source of breathing gas and no buoyancy, I'd prefer that the person to blame was myself. Ergo, I set up my gear myself. YMMV.
I have yet to come across any rack designed for BPW.
Do you really believe you would probably die if faced with a (serious) gear failure??
If so, you probably need to do some work on your emergency drills until you get to the point where you know you will almost surely survive any gear failure.
The problem is not about holding the tank; it's about pinching the bladder. On boats that use holes in the seats to hold the tanks, the wells are typically so deep that the bladder is in danger because it is sandwiched between the backplate and the hard deck, especially for people like me who mount the tank very high because of trim issues. I usually have to put something in the well, under the tank, to lift it higher so that there is less chance of damage. Boat crews, even if aware of how I want the rig to be mounted on the tank, are used to slinging tanks around without worry of wing damage. So, I choose to do it myself .On the other hand, I've yet to come across a boat/rack that did NOT accommodate a BP/W. In fact, I'm not sure what about a BP/W rig would preclude it being held in place by any rack that would accommodate a standard recreational BCD. The vast majority of racks on the vast majority of boats hold the tank... so the particulars of the rig are immaterial.
(I can hear a chorus of "no one touches my gear" but I do not find that this works for me -- I don't want to carry the tank + gear through the surf zone onto the boat, for example. And I do want them to switch tanks for me on a pitching boat.)
Bill
On the other hand, I've yet to come across a boat/rack that did NOT accommodate a BP/W.
is pretty universal
In fact, I'm not sure what about a BP/W rig would preclude it being held in place by any rack that would accommodate a standard recreational BCD. The vast majority of racks on the vast majority of boats hold the tank... so the particulars of the rig are immaterial.