Excellent - Well Done - I would love to be out in conditions like that but would always shy away for 2 reasons - 1. I'm always out with my kids. 2. i would chicken out as i wouldn't be confident of being able to get the rib back over should disaster happen like it did to you.
Maybe when the kids have left home and the boat is not so new anymore - i too will brave some extreme wave riding.
Im glad everything worked out - did you break anything at all (I hope not) and how much did it cost to get the engine overhauled.
Some people will look at this as a complete disaster - but I bet now you've come through it and look back it was a hell of an adventure. (I'm not trying to say you would do it voluntarily or anything)
Its one of the difference between owning a bigger boat and a small tiller steered rib or sib - When i was younger i never even thought twice about playing in surf off the beach in a 3.something meter Metzeler we had with a 15hp on the back - because you new that you could recover if the worst happened and you flipped over.
I think maybe i will by a zapcat and keep the 585 out of breaking waves - now how am I going to explain to the wife we need a second boat