Weight?......
:agree: with nswillin. The ring will probably hold. But if you do intend to pull someone with it, I think I'd put a backer plate on it, just in case.
If you have someone on a tube, with constant drag, probably o.k., but if you pull a wake, knee or ski..........anything that can build up huge drag, it may get pulled out.
Put a backer plate on and be safe. I'd hate to hear you come in, looking on how to repair fiberglass.:cheers: