Me and Scot Tuma ran this a few years ago. While nobody objected, nobody was really interested either. Based on 8 years scoring races, I think it will work. There may be some rule beaters but,unless the wind is really light or really heavy it should not be a problem.

My suggestion is go ahead and do it. The first year, simple rules, all spin cats are legal (see what happens before you spend a lot of effort). Break it up into 18 and 20 ft classes (for the fun of it, flip a coin to see who gets the P19). Ignore the whinners. After the race plot place vs number of years racing and place vs number of races on their current boat.

Run it in addition to the Portsmouth Class. If the RC objects, donate a trophy and offer to score it.

If you need help let me know