Ok the stealth 'r' main might have been acceptable to the F16 class but the huge jib? Did the existing mast accomodate the extra F16 main area? Didn't all the 20 footers you mention come after the formulation of the 20 foot formula? The existing 19 - 20' fleet boats were no longer the flavour of the month, but many owners held onto them. They reluctant to commit expense to another class showing little benefit over what they sailed. Result in UK - dilution of some classes and failure of the formula.
Cheshirecatman
The failure of iF20 in the UK, was, IMO a direct result of the strength of the Hurricane 5.9 fleet.
In the 10 years I sailed the 5.9, I was never beaten by a iF20 in any race OVER THE WATER, there was no need to move to the iF20 as we all had the best boat at the time in the Hurricane.
I'm afraid you are not quiet right, the 59 was still the flavour of the month. We did not all go and buy iF20's; The fleet only started to reduce when a forumula boat came along. That boat was the F18.
