Not a wing design expert, but based on some DIY study of wings I own, all wings must over size their bladder somewhat, so the outter shell is what restrict the maximum size of the wing. In this sense, H bladder is over size, so as DSS or DiveRite and many others. These wings "properly sized" their bladder. But Oxy 40lb over size by a huge margin. based on eye balling, I would at 50% bigger than what it needs to be. I have posted picture of Oxy vs H inner bladder pictures before. I will find the link and update this post later.
As for wing size reduction due to tank attached, I can understand this applies to all wings. it is all about the acceptable range. If a 40lb wing with tank attached, it becomes 38lb. I call it acceptable. But if it becomes 30lb,I say it is too much. Oxy MkV by design will suffer from this more than any other wings because it is so narrow. It is the cost of being so low profile.
In fact, I did some ghosting test in my dunk bucket at home. Set up the rig with different wings, out weight in until the rig sink. This is by no mean accurate because my dunk bucket is not big enough but it does show a ball park comparison. Oxy MkV 40lb only take 2lb more to sink compare to H 30lb. Both with worthington lp95. No reg attached. Both with STA, Oxy has deep outdoor, H has H. DeepOutDoor STA is probably lower profile and 1 lb heavier. Again, not a scientific measurement, but kind of show the ideas.
Can't find the threat, but found these pictures
H 30lb. Left half (inner bladder) vs right half (outter shell). Bladder is a little bigger.
Oxy MkV 40lb. Left side (shell) vs right side (inner blader). See how much wider it is. See the crease at the middle vertically on the bladder, it is where the bladder got folded naturally when inside the shell. A member here showed a similar picture for the 30lb version. The bladder doesn't oversize like this.
) warm water. Pleased with it, but there are a few things I found; and as mentioned above. These may or may not apply to the 30 pound version.
