I installed a SS u bolt in each battery box backed up with a plate on the outside. This makes it easy to roll up the straps and store them without unhooking the straps from the boat each time. I got two plastic battery boxes to place the batteries in to eliminate the straps being exposed to acid. I use a one piece bow strap for the front and have starting attaching it to the bow eye! My Parker is a lot easier to lift than my old 26' striper WA. It not the ideal launching choice but it's run by the city and 35 miles closer than the next place. Plus one of the best fishing spots around. I landed over 100 salmon last year less than 4 miles from the hoist.
Ya your right, you shouldn't launch your boat here, much much too dangerous! Boats get dropped all the time!