i'm honing the cylinders for new rings on the k4 750 today and i'mn wondering what anglei should have it at? i cant remember what they told me at AMI. of course this being a street bike longeivity is a good thing but iAM going to an 836 or 850 this winter maybe. whats the difference in wear length between using a 45 degree or 60 degree crosshatch if it's properly broken in?