Not sure I would be as worried about the rings compressing the stock rope for kids like mine that are under 70lbs. I switched out the stock suspension on my kids hammocks to whoopies thinking it would be easier for them to do themselves. Couple things I noticed that makes it less advantageous for them.

1) can't get the tarp tension fully on the whoopies needed to move the tarp clips to the dutch tree straps.

2) Whoopies require a little more distance then stock straps alone. My kids are not tall enough to put the tree straps at a good height in some spots.