Center sheeting as mentioned is structurly sound from AHPC. I do not like the feel of it and prefer rear beam sheeting however it is personal preferance.

As for F16, I like the look off the Viper and am an ex Capricorn sailor, however have not sailed one as yet but may have to line up a test ride.

Thanks to Phil, I have sailed a Blade and was quiet impressed with it.

About 6 or 7 years ago I sailed a Taipan 4.9 with kite in the first AUS F16 regatta. Not bad to sail but could do with more boyancy up front when it got fresh. The kite we had was a shocker also as it was a recut 16 skiff kite.