Small world. I had a similar situation with a P19 last weekend. Rules didn't come into question but it took forever. At first I tried going through his lee, big mistake, needn't have bothered. Imo, the only way is over the top.

As to the rules, who knows? My guess is it would be your word against his if it went to the room. I think he had the right to luff but only before the overlap.

Slight hijack I suppose, but P19 is a very nice boat. Why aren't there more of them?