I have just ordered Razor 4 sidemount system. I have consulted few professional technical divers and instructors like Vas Proud and Steve Martin. I live in Colorado but travel to Mexico for diving, dive locally here and also planning sine Florida trips. I am diving steel LP 50 and 85' as well as aluminum 80'. Dive in wetsuits from 3mm-7mm and drysuit is purchase is in near future. My husband has XDEEP rec wing for his cave diving. My concensus is, if you are properly weighted you really should not need the lift of tech wing especially if you are diving dry. I see people diving with steel 85 with aluminum 80 stages in wetsuit and dry with XDEEP rec and Razor without any issues. I was drawn by the simplicity and streamline design of the Razor. It's lighter and less bulky (less weight needed and easier to travel with). Razor has more weight placement options and tge waist buckle is low profile comoare to XDEEP. It cones with redundant bladder by default and is not as obtrusive as XDEEP redundant system. As I understand, it's little difficult to set up but once you get it dialed in, it fits like a glove. I think you cannot go wrong with XDEEP deep either. In my opinion, their system should not be called rec and tech bug small and large instead.
I am suoer excited to get the Razor set up and dive it. Here is tech and rec wings inflated side by side. I am 5'9 and 145lb and the tech wing wraps around my torso too much.
View attachment 893179