Hi Toby,
thanks for advice ! Unfortunately I´m from Garmisch-Pa. and have to face a weak ora close to Malcesine/Campagnola Bay at Lake Garda or gusty thermal winds at Walchensee or a westerly breeze on Lake Starnberg. Therefore I guess it might be quite a difference having 2knots more low end potential - might be the threshold between planing and watching others doing it ..
It´s a pity that most brands jump from 16 to 20m skipping the 18 as in my opinion the improvements you mentioned, having for sure taken place, should enable the designers now to develop 18-sizes with the feeling of a 14 or 16 having last year. Reading about a Mach 1 18.1 for example makes me a bit sad not yet being advanced enough for a high AR kite, but considering the unsteady conditions I´ve to kite I wonder if the new intermediate shapes won´t be the best solution for the future as well !?
aloha
Jürgen