Originally the tether has nowhere to be secured to the ROV apart from into the side panels. This creates a skew drag in the ROV when tether drag occurs. I solved his with an easy solution, using a threaded bar through the side panels on the aft of the ROV. Nuts on either sides of the panels makes sure the panels dont`t gets deformed when making up the outside nut on the threaded bar. A thin plastic tube will be installed over the threaded bar to protect the cables from the sharp threads.
I am interested to see if there are some other solutions out there too.