Here is update regarding Powervest from long time user. Little to add to fairly extensive comments earlier in this thread EXCEPT: New strong recommendation for strapping. Other than more weight than standard ski vest - the only downside to vest from my long perspective is modest but definite friction of the "standard" strap when reaching. I have tried many variations of strap material, but difficult to find one that is strong yet with minimal friction on passing through the vest material and gizmo that guides the strap relative to the back plate. Previously I mentioned using small I - bolts rather than the stock D - ring on a strap (pics earlier in this thread), but still annoying low grade friction when reaching. Recently I tried nautical 3/16 in line called amsteel https://dutchwaregear.com/product/3-16-amsteel-blue/ .... super strong, no stretch, and most importantly -- glides through the vest on reaching with no detectable resistance. Bowline tie on one glove and bowline to snap shackle / glove on other side. If you use a PowerVest - I strongly suggest you give this a try.