I don't know much about drillings but:
I have a X Factor Deuce drilled pattern 1 and it rolls very early with hardly any backend. Since the MB is in the track it should promote a smooth arc down the lane.
My Crimson Executioner is drilled pin over ring finger with the MB in the strong position, which is damn near exactly the same as layout #2. The backend on that ball is out of this world.
I'm not trying to start any arguements, but I was always told, have always read that MB in the strong position will produce the hardest, or biggest backend snap.
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In the old days people used to cut wood with axes.....................now and days...............they just have Executioners do it for them!
Pin_Krusher IS a serious threat to modern day bowling wood as we know it today.