severne sails tack pully?

[dave]

I use a severne sail and have an issue with the built in tack pully. The three pully system on the sail does not perfectly match up to the pullys on my mast base, and the large size rollers on the sail have quite sharp edges. consequensly, when fully down hauled the rollers on the sail cut my down haul rope after about 4-5 times used. this is an extream pain in the u know what!!
has any one else had this problem as well, and what is the base pully system recomended by the sail designers??

thanks Dave
6.4m S2