What makes the jacket BCDs fit wrong?I'm past 10 dives and have rented so far but always the same 2 BCDs. Not so many available to try... The shop where I did my OWD only sells one brand which annoys me. Another shop where I've bought a few things will let me try the above mentioned BCDs. And that's all the testing I can do I guess. I do have all major equipment except for BCD and regulator (and torch if you count that in). And the BCD is definitely next on my list. I'm annoyed by badly fitting BCDs that I don't know inside out. Regulators on the other hand are expensive to service and if I dive with good shops I trust they service their regs well. So for now I'm happy renting those.
I tried a jacket BC during my DSD and first OW session. It wouldn’t stay down and rose up around my ears, no matter how I tightened the cumberbund. I got a BP/W with a crotch strap and it was lovely. No riding up. There are some jacket BCDs with crotch straps if the shoulders riding up is what you encounter.