As the replies already suggest, there may be a lot of advice and thoughts, all are based on personal preference, and all presumably work for the poster offering the advice. IOW, there isn't one (and only one) universal 'right' approach.I have a DSS stainless steel backplate, DIR harness, and two wings (older 30# DSS and a 55# Hollis). . . . The weight and bulk are a liability while traveling to locations where I'll only be diving with a single tank and minimal ballast. I'm tempted by products like the Aeris (now Oceanic) Jetpack. Light weight, less bulk, back inflate, adjustable harness like a BP/W, designed for travel. On the other hand there are lightweight BP/W options to consider. Any advice?
My personal preference: I travel with a 6lb SS BP, and an 18 or 30 pound wing. The BP (sans wing) goes in my carry-on backpack (in the laptop compartment), along with my reg. I check other gear (wing, neoprene, fins). I also have an AL BP, I have 3 'soft' BPs, and I could probably save weight with one of them. But, I prefer my SS for single cylinder, warm water diving, so that is what I travel with. The last thing I would do is buy yet another BCD just for travel, particularly when my SS BP travels very nicely, and I already have several lower weight options (which would be better for me than a separate 'travel' BCD), that I don't even use.
Again, that is my personal preference, and that works well for me. YRMV.
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