ballast:How fragile is a BCD? Can I pack it in a duffle bag without worrying about dump valves getting crushed/broken? Should i instead look for a more structured bag for air travel?
I've used the soft duffle method without any issues. I now have an LL Bean rolling duffle because once I get to the Philippines all the gear is just too heavy to haul on my back. It has a good hard bottom on it and I throw a lot of soft stuff on top and it doesn't scream diver. 8 trips so far and no problems. Before the rolling duffle I just used a large soft duffle.