Yeah, it has worked very well for me. The only issue I ever had was when I strapped something around the board pulling hard inward and it made the board budge a bit. I tightened down the sex bolt and it fixed it, but on my next iteration I think I'm going to do a pair of U bolts on each end instead of just one.
Those sex bolts for attaching to the U bolts can be tough to find or just really, really expensive. I haven't been able to find them in stainless at a price I'm willing to pay, so I've been using these: https://www.grainger.com/product/1CJW1