when I started high I was having 2 inch tears (high) so I lowered intill I got bullet holes and now is where I am. I talked to buckmaster and they want my bow to check out, and they are going to place the 78lb limbs on for me at no charge and they will look into why it is low nock.. I kind of think the arrows are spined off, the graph from PSE says it`s ok for my bow, who knows...

evan