oh, that's what happened to me in a katong league session when
the oiling pattern has not changed yet. If i play outside line, it
crosses over. if i play inside line, it falls short of the
pocket.
When that happens, I played the outside line, speed up my ball so
that it goes higher on the pocket or around there. This is usually
not consistent.
What I can do though is shift right (i'm leftie) 2~3 boards, and
target 1 board or so, depending on the lane condition, switch to my
ShockZone (skid-snap) ball and throw at my initial speed(relatively
slow). As the ball is made for more length, I could have it skid
further down, before its snaps and hook. By shifting slightly
inside, I can get slightly more oil and it will skid further.
However, before I even get to try this line again, the oiling
pattern has since been changed, so I cannot work out my theory. It
did work for 2 games of fun bowling after league session
though...