Questions for Rick, Wouter, anyone else WHO CAN PROVIDE ANSWERS FOR MY ORIGINAL QUESTION :
I didn`t intend on opening any old sores regarding this type of sail, no doubt the issue of which is faster can go on long into the night,
with the arguments becoming more convincing on both sides - I asked for more info on the reaching type sail I saw in the pic, thank
you to all who answered as it`s difficult to evaluate something you`ve only ever seen on paper and in an advertisement from the
designer of the sail, whose opinion on the matter is likely to be biased toward the product since it`s his idea. (No offense, Rick - only
natural for you to love the hooter since it`s your brainchild.) I find Wouter`s comment interesting regarding ISAF`s stance on the sail
"They do consider it a headsail but just rated it in the same way they would do with a large jib. The shape and fact that it can be
carried upwind are likely the causes of this. It behave differently than a spi or gennaker and is therefor naot rated as one by Texel
and ISAF handicap systems."
I would like to find out what the exact definition of a spinnaker is, as well as a jib, from ISAF`s point of view. If it`s due to the fact that it`s roller-furled,
easy - just sidestep that by lauching by another means. If it`s because it`s flatter than an assymetric I would be surprised - define "fullness" -
this would be impossible to regulate. You could cut a very flat assymetric that satisfies all the F16 rules & use that sail to also go upwind.
If it`s because it can be used upwind in light wind only, I`ll buy that, but then it should only be handicapped excessively when used in light air, since
it can`t be used to it`s full potential in more tha 5knots (according to Rick). ISAF`s handicapping system needs a lot of work - a 16ft cat with 100sqm of
sail area on a 30m long mast would make a boat theoretically twice as fast as a tornado - in reality it would be overpowered in half a knot of wind.
My question is, at what point does an assymetric spinnaker become a hooter, is it :
a) the fact that it furls
b) the concave leech
c) the fact that it is flatter (if so, at what "fullness/flatness" does it change definitions ? How do you control that ?
d) the fact that it can be used to sail higher than a beam reach

I`m not trying to get everyone thinking which sail is better for F16 - as Wouter says, the matter has been decided.
If you believe in the hooter, sail it in open events or just for fun. My question should have included my intended use :
To race open-class against anything that floats & beat it over the line. I don`t care about final standings - sailing
fast is my aim. Also to be used blasting around and covering as much distance in a day as the wind allows. That`s
my kind of sailing. The Hooter type sail probably suits this role better than an assymetric. If I was obsessed about
windward/leeward racing only, I`d go assymetric.

Cheers
Steve