Hi Mark

Really appreciate your well thought comments , believe you are correct about I-20 sailors ,-but the largest contingent of sailors in NA is still in the Hobie classes ,-it would be great to have those numbers interested in 20s join in along with the other % in I-20s and other % in misc boats as listed .

One confusing aspect is the US inter 20 was not built to the EU Formula 20 rule ,as the Hobie FOX is,--it has 15 more sq ft in the main than listed having a larger sq top . It also is much lighter weighting a listed 390 ,though some have weighed their I-20s at 385 LBS ,--so that is the reason in the proposed rules for the sq ft sail and 385 boat weigh ,--to match the current I-20 in all regards .
The only other aspect needed is an added rule for mast spin tang location on the 32 ft mast that would limit spin luff dimension ,-AND will add that so all spins are approx the same size ,though older existing unchanged heavier boats may use the larger spin size as per 6/0 ,--though proven not as fast as the I-20 ,--this mainly due to spin luff dimension and the extra area in less effective overlap area.

The current US I-20 {{{ONE DESIGN}}?? has several different spin shapes now -I count 4 ,the earlier ones being much flatter,-I have one which is not competitive at all and noticably slower ,--The new current crop of mainsails look different than the earlier ones , the new I-20 mid-pole snuffer system looks like a big improvement --there are at least 4 different jib configurations now -battened --non bat --self tacking -non etc .The new shaped and sized rudders seem a big improvement ,and think most newer boats have adjusted rigging to rake the mast aft further which helps load the larger rudders and helps balance and improves downwind performance ,--What is left of a {{one design}} --maybe hull shape ,-- most comprehend that is not a huge factor in total boat speed performance . It seems an easy step from there to Formula concepts which work so well for F-18 .

I hope for the INTER and all 20 ft boats sake that a Formula 20 class will evolve based on the I 20 specs in some similar form as proposed ,--If not it seems the boats are nearing the end of their competitive cycle and will go the way of so many other dead boat classes .-
If the Formula 20 concept does not take this year my personal preference will be to purchase a lightweight larger beam 20 and get ahead of the curve towards new boat classes ,--possibly a LIGHTWEIGHT HT fORMULA 20 of newer lighter boat types .--It is either one or the other this season .