I had really high expectations, counting on an easy 75+ kmh :-). But it turned out to be quite different. After 3 wonderful Horst sessions with the Xfire 80 I thought everything was possible ;-).

First the speed board I got from Robert (Patrik Speed 43) was blown to my car, with a dent as a result. 

Then I could not get my sail stable with the X-Fire, with crashes as a result. 

I got a really good sugestion (thanks Serge, Robert) to try the Patrik Speed 43. That was a really nice experience and I sailed 40km on it. 

As it was really gusty and not really flat, the Xfire was faster, so sailed the last hours on the Xfire again.

For the record, Speed 43 went 66kmh max. 

And on the end some extra downhaul helped with the sail.