Matt miller,
I've taken a little look around the web site and if their forum is anything to go my, not much.....
BUT
Brain Phipps has done a vast amount of work to get a squad of kids up and running with the H16 as this is the boat they had to use for events. I am just passing on what I have been told in the dingy park about the H16 and what the kids think about it. Sorry, don't shoot the messenger....
And Wouter......
With respect to 49-er, which isn't big in NL, I can say that there are plenty options that blow this dinghy out of the water. Spitfires, F16's, FX-ones. Sadly the old EU version of the I-17 simply isn't up to it.
I think you have some very slow I17 sailors over there. In an F3 I'm just faster than a 49er around the course, in an F4 I am a fair bit faster than them and in a F5-6 I lap them in a 5 lap race......with ease

Also, you say else where on this board that you are happy for us I17 sailors to come and sail with you on parity as the handicaps are almost the same (couple of points I think, and we
are grandfathered into the F16 class afterall) - so which is it, is the I17 almost the same speed or not ?