TransPac is sorta close to BP/W. It does not have the steel/aluminum/plastic plate. I normally dive with a steel BP (5 pounds) so I need no lead in 3mm suit. I have an aluminum plate for even warmer waters.
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<DIV>The BP/W has no buoyancy when empty. The TransPac has buoyancy from all that material and padding.</DIV>
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<DIV>Last weekend, I put on my BP/W after it baked in the Texas 95+ degree sun for an hour. I was wearing no wetsuit. Yessir...whole new adventure in pain.</DIV>
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<DIV>Finally, some folks say the BP/W is not as comfortable on land as TransPac. Well, I'm more concerned about how the gear feels inthe water. Once you're in the water, the BP/W keeps you in the "right" position and is comfortable. On land, the two-inch harness strap is not uncomfortable, and I've had to walk some distance for donning point to entry.</DIV>
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<DIV>I'm told that the TransPac *can* be used for doubles; it is not recommended. The BP/W is built for doubles and can use singles.</DIV>