Hi Rolf,
Klaus, you are the aeorodynaimist, you should be telling us
Well, a theory without practical back up might be wrong, hence I ask.
...the sail should stall over the whole at the same time when you have perfect trim
That's what I think as well. But I see that you use subjunctive. Did you ever achieve this 'perfect trim' (I assume you use tell tales at the leech)?
Actually I have already a quite relaxed dimaond wire tension, maybe the leech is cut to long <img src="http://www.catsailor.com/forums/images/graemlins/confused.gif" alt="" />...
Apart from confusing sail trim, my wife and I have had great time on the boat already. My wife did helm under spi for the first time and really pushed it to the limit and now she is really thrilled (she dived the bow up to beam, nothing happend, but a big shower for us).
You will be surprised, how sensitive these boats react on the smallest changes. I hope you get your boat on the water soon, so you can share this.
Cheers,
Klaus