The pictures were mine of the ramp set up. I had the cart fall with my ramps tied down. Things were a little damp and I HAD to load up and pull out. Ha ha ha.
Got half way up and the back tires started to slip. Next thing I knew the cart was sideways and the ramps were on the ground.
Ramps can be safe if it's dry... What if you have to load up in the rain and your 500 plus miles from home? If you have a winch in the bed of the truck then there is no problem.
Securing the part of the ramps that touch the tail gate or bumper with eye bolts is good. But the ramps can still kick out or in if the back of the ramps are not secure.
What I considered doing is modifying the ramps with two lengths of all thread or something like that so that I can fix the width of the ramps exactly to the wheelbase of my cart.
Another thing to think about, at least on my club car ds is that the front tire track were more narrow than the rear. So if I set the ramps even with the middle of the front tires the back tires would hang off a bit.
Thanks and please be safe.
Jeremiah