Hi wouter
to the theame, sloops verus cat riggs.
It has to be said, that for a given sail aerea, in the lower windspectrum ~ from 1 to 3 Bft ~ the cat rigg is faster on a windward/leeward course. You didn't say that in this year two Catrigged M20 had line honours on the round Texel race. They didn't win after corrected time, which actually only a matter how the ratingsystem weights the different riggs.
I also like the simplicty of our uni rigged boats.