I’m running a Deep Sea Supply SS backplate, LCD30, complete rig. $470.
Get the $99 weight plates for your cold water dives. The LCD30 is pretty much the most well rounded wing in the DSS lineup. Big enough for cold water, but too slim to taco bad in warm water. It’s inflator hose is very short, weird at first, but when you get used to it, it rules. It doesn’t drag or dangle.
An LCD20 would be my pick for warm water vacations, if you ever feel like having a wing for home and another wing for travel.
My regs, BP, Wing, computer, and camera go in my carry on. So I do use a SS backplate for travel, the extra 7 pounds off my belt is nice.