Nemrod- how does your better half find the pockets, that is assuming she uses them at all? At our coldest, I dive a 4/3 full & hood with #16 of weight. Seems like the lift is sufficient for that set up.
Well, I shall leave Meemaw out of this. In my opinion, as stated, the Zuma is stretching but adequate at a 3/2 full suit. It is not just the lift capacity which differs per size but as well the construction and lack of hard shell. This is a roll up, fold up BC, it has no support, the fabric is light and it is not intended to support a lot of weight. It does okay with a five pound in each of the weight pockets and a three pound in each of the cam band (optional) trim pockets.
Pockets, sorry, there is only one fold out pocket on the Zuma on the left waist strap, again the Zuma is a minimalistic travel BC, anyone wanting to bring a can light, kitchen sink, five spare masks and matching snorkels and a complete first aid kit, search and air, sea rescue kit with flare pistol and two way waterproof radio, should look elsewhere, the Zuma is not for him/her.
As to a BP/wing, even an Oxy 18 with the fabric soft plate is much heavier and not nearly as compact as a Zuma. Remember, the Zuma will roll up not much bigger than a tee shirt and shorts and not much heavier. I use and dive a BP/wing, even before they were called a BP and wing. I realize that some people dive drysuits and stainless plates in tropical water, I even saw one in the Keys in 94 degrees and 96% humidity sweating his bXXXs off complete with stainless plate and enough weight to sink him sufficient for the rest of the divers (I also just saw one guy in a drysuit in Coz on a completely non-tech dive, 84 degrees water). I thought it a bit extreme, especially since the guy in Coz had the SAC rate of a Shop Vac. The Zuma was clearly not meant for that diver. Do not be that diver, be a Zuma diver, neat, minimal, streamlined.
And the Zuma has a BP/wing beat on another count, it has a place for a cute little optional snap in knife instead of a silly steak knife.
Here my wife in her Zuma is pointing at a critter, no, actually she wants me to be sure to see the guy in the drysuit, no, really, she is pointing a critter for me:

And this picture has nothing to do with the thread, I just like reef scenics:

N