If your main has a large draft or old battens this will cause the problem you have mentioned. Some times a little over rotation on the mast with an older sail with older battens will help flatten the sail so you can get a clean slot while you are pointing. Sometimes it will make it fatter. Depends on if it is a square top or a pinhead. A larger set of foam battens in the lower part of the sail will help too. Of course..... If you dont sheet properly it is all for not. I have actually bent 2 clew travellers from sheeting my sails in hard. But I can point with the best of them.
No one has mentioned the jib car placement. Another critical issue when you are trying to get the 6.0 to point. I'm assuming mid-track and traveled in about 1 fist from the hull. I dont know because I use a monster jib on mine (makes an NA jib look like a sliver). The NA guys will have to help you with that one. I'm sure Rick or Captain Kirk would know. They are always willing to give good advice.
Good luck!
AJ
Nacra 6.0 Express