Got this done:
1x70lb each arm.
Think I could go incrementally higher. I'd like to do it somewhere on a mat so my knee isn't on concrete. That didn't help.
Played around with hang power snatch, got up to 110lbs, but felt like I was muscling it up just so I didn't have to drop it, but I figured I'd stop there. I think I could get 120 with a bit of practice. Which means 135 is right there . . ooooo.