Hi fellow wind warriors. I bought a brand new 5.3m northsails hero white/blackberry in colour and i can't seen to be able to tune it right. I tried a new 400 neil pride matrix 65 mast and it wasn't right. Now i'm trying a North sails silver series 400 19cc 55% carbon mast and it's not much better. The leach very quickly goes from not enough, to flapping around and too loose at the top. And it looks no good around the mid section of the mast. This sail isn't anywhere near as good as my older 5.4 alpha and it's rather upsetting. Has anybody got a similar sail that works, and if so, what mast do you recomend?