Huh, never thought about this which is why I LOVE this forum. I'll have to check the angle once I lower the HLT to the correct height but luckily I have the weight distributed between 4 points.
So after looking over that site....a keg ~30 lbs empty plus I'll go on the high side of 10 gallons in my HLT ~85 lbs totally ~115 lbs. A single chain can handle 550 lbs and I have 2 plus a single hook can handle 150 lbs and I have 4 and the hooks are the weakest part of this setup. Even if I'm at the critical angle of 120 degrees that would mean I have a total weight of 230 lbs and 2 hooks should be able to handle 300 lbs at this angle. Again, I am quoting high side so I SHOULD be good. I guess since I'm just over 200 lbs myself I'll just hang from the chains for some testing and do some pullups while I'm at it.