I found this comment on the catsailingnews blogspot site

Xander Pols won the Round Texel in 07 and 08 and here is what he says about the N20carbon:

"Hi all! I can say that the new Nacra 20-Carbon is mutch faster than the M-20. I sailed the M-20 for the last 8 years and won the round Texel race two times with it. But this year i lost all the races against the Nacra-20. It was frustrating to see. So i sold mine M-20 and ordered a Nacra 20. I advice everyone who wants to be he fasted on the water, to do the same!!!

See you on the water!"