Hi Claus, I cannot comment on the Wildcat nor the Infusion. I've replaced my capricorn with a C2 this year and i'm really happy with the C2. The Capricorn was a very quick boat, especially upwind. Downwind it lacked the volume (Wildcat does not look to have a lot of volume up front either) which could lead to dodgy situations if you push it hard. The C2 has remained the upwind strength of the Cap but can be pushed so much harder downwind (like the Infusion). I've sailed Nacra's for years and was amazed about the buildquality of the Capricorn and now C2. Good luck with your choice.