I'm just curious about how horrible drag resistance *really* is using a standard ethernet cable is. I've heard from some other forum threads how the OpenROV has so much available power it "jumps out of the water...is there any way to tone down the power", and I've also seen / read how people are jumping through hoops to get bandwidth and power down and back to the ROV. Like tether length had to be restricted from 100M to 50M, framerate of camera can only be X, number of cameras can only be one, etc...
From what I understand a standard ethernet cable would solve both of these issues (obviously not a ton of voltage / amperage via power over ethernet), but the limiting factor is its cross section and stiffness. Ok, fair arguments about those limitations, but my question is who has *really* done the ethernet test in water and can whole heartedly say "Yea, it sucks, my ROV was being dragged all over the place from the currents." or "Yea, it sucks because I couldn't control my ROV the cable was so stiff?" I can understand the hypothetical situation of it not being ideal, but sometimes you just have to do the physical test.
I know about the tether decision tree (http://openrov.com/forum/topics/tether-decision-tree) and the only negative about standard 4 wire ethernet is "heavy and more rigid", has it been reevaluated recently?