Bjaardker,
Surprisingly, we agree on something.
Would it make anyone feel better if, before league or a tournament, the graph was circulated, and everyone had to initial that they'd seen it?
That way the oiling pattern wouldn't be "invisible". Of course, that graph is only valid until the first few shots are thrown, then the shot changes.
That, I believe, is the true skill of bowling, other than timing and release. If you can read the lanes and make the right adjustments ahead of the next guy, you win. If you make 'em late, you lose. Therefore, the better bowler, who knows when they make a good shot, and don't second guess themselves, will usually win. Everyone is theoretically bowling on the same condition - should I blame the lane man when my opponent outscores me? Last night, the guy I was bowling in league had a fantastic matchup for his game - he went 258-299-192. I was bowling on the same pair - 194-204-192. I could hit the pocket too - but he could score. Was that the laneman's fault??? I don't think so.
Now of course, there are true cases where the laneman shuts someone out. We had a case like that in a local swiss a few months ago. We bowled 4 games, broke for lunch. They dressed the heads, without dragging or any other attention to the lane. The lefties were shooting out of their minds - one of them had an 840something the last 3 games. In the same games, on the same lanes, James Hylton (remember him- #5 mr 900) shot 540, I shot 550, my partner shoots 540. So yes - the lane man did shut us out. No question.
But - there have also been times the lefties have been shut out, so I guess it evens out.
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Bowling? Of course it's a sport.