from wat i know, even spinners need that grip on the lanes that
causes the backup or tiny hook. it brings more pin action than just
simply whacking the ball straight into the pocket. if it is too
oily, and the ball doesnt grip, the common pin that stands is the
pin 5, bcoz the ball simply deflects away from the pin after
hitting either the 1-2 or 1-3.
to illustrate this, tink of your sleeper pins, righties pins 3 and
9 lefties pin 2 and 8. if u play hook, and you send the ball abit
too far out, and it comes back weak, u will manage only the front
pin. the rear pin will just stand there and laugh, bcoz the ball
juz wun grip and carry on to pick up the rear pin.imagine that to
be pin 1 and 5, now add and extra pin 2 or 3 ( depending on which
pocket) same logic applies. and now there is an extra pin to
contend wif.
comprehendo?
ps: sick wif fever so dunnoe if i even make sense here...