Hi Wouter



The euro I20 is even with the Tornado in ISAF small cat ratings. In this years PN's (the larger then EU) US I20 main owes time to the Tornado in B 2 to 3 and gets time at higher winds.



This seems reasonable to me!



the DPN has the Tornado owing time to I20 through out the wind range.

A single number system is simply limited with how fair it can be.



With respect to fairness and formula racing... the proof is on the water. If a boat meets the formula but destroys every other class on the water ... well so much for formula racing. Example the previous formula 20 rule won by Ventillo. The F18's seem to have it pretty well figured out... lots of competive boats at various price points. Time of course will tell about the 16 HP's and 18HT's formulas since its way to early to assess how well the formula works (But the boats are very nice in and of themselves)



Formulas are not gauruntee's(sp) for fair racing...

Note Carl's attempt at a US formula 20 rule... few sailors are leaping to sink their money into changes to meet an untested formula rule because they just don't think the changes will result in "even" boats on the water. Buy in... is the key to any formula rules success. The perception of fairness is key to enrolling the racers into the idea.