I have been using the same drilling on all my balls since June. A 85°x2 1/2"x45° layout that has totally worked wonders for me this year. I have that layout on my Villain Pearl, Heist Pearl, Shredder, Hype Pearl, and had it on my Slingshot. The Slingshot was the test ball, and enjoyed throwing that ball. I get a real consistent roll every time, no more of that over/under or snappy reaction.