mcm42,
I think the point of it all is try that in 10 houses on 10 patterns.
including PBA and sport shots.
moving 5 boards right may put you in OOB.
the big factor is initail trajectory. you are projecting the ball forwards and it has to incounter friction to turn left.
this can be at a different spot and create different angles of intersection. take into account ball roll out and other forces that can happen in 60 feet along with the human inconsistent factors.
tug the ball on a wet dry and you will miss right. fling it out and it may bounce off the dry to soon and go infront of the pin.
same scenario with plastic. the inital trajectory is directed at the pins. friction is at it minimal per your release. this means the plastic ball will react less to incosistencies in your release and speed and lanes. but if you have very, very, poor accuracy then that inital projection will miss a lot becuse of less luck from the lanes.
so You have to better to use plastic on a THS. but when it comes to tough patterns the luck from the lanes becomes a greater liabilty to sparing.
so Plastic is better in the long run. and this comes from A guy who can kill anyball. yo9u need less of a special release.
so 100's of hours practicing a high speed,low rev, straight release or $50.00 and a dozen games with a siple flat release that is easy to duplicate.
easy math on my part.
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"deserves got nothing to do with it."
-- William Munny