We have a lane machine that can't put down true PBA patterns, so they got them 'close'.
What ended up being a sport league based on the PBA experience ended up with patterns that were more difficult than the PBA conditions.
One particular bowler who averages 235 at age 21, struggled to break out of the low 180s on average. He's no house hack either. Best bowler in the area by far considering his age.
My point is, I don't care how strong your ball hooks off the wall; anything can be negated by lane oil.
If anything is cheating, it's the house patterns they put out. I bowl in two different houses; one synthetic and one guardian. I think I might have to move 1-2 boards on the guardian and stand in the same spot all night on the synthetics. On the sport league, you had to adjust fast.
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There is nothing so easy to learn as experience and nothing so hard to apply.