A HOG rig would be nothing but a constant fuss and tangle in this environment.
I have been experiencing this as well with my river diving. I may go to a j valve and just one second stage for my 20 foot deep river dives. I used to love my long hose until I started river diving. I was towing a float and some salvage last weekend and the current carried me into a log, which fouled me, my girlfriend, my salvage, and my float all at the same time. It's a good thing I'm patient. I think I can keep the BP/W, but I may have to ditch the long hose for riverine use. I had to go to my backup and completely unroute all 7 freaking feet of that hose to get out of that tangle. The stupid snap link on the primary second stage was so tangled I thought I was going to have to cut it, but thankfully I worked around it.