We have four scratch leagues in the area. One had an average cap of 840 two years ago, went to 860 last year, and 880 this coming year. Twelve teams, with a waiting list, and no more lanes available.
The other one I bowl in went from 825 to 840 two years ago. It was 12 teams this year.
There is a trio travel league that is draft by invitation only. I wouldn't have a clue about that league, because they don't allow women to bowl. Their choice -I just don't know anything about it.
I think the fourth league in the area is a trio, with a cap around 630.
The biggest league in the metro area is a "modified" scratch league - in other words, it went from scratch to reverse handicap to keep teams from "going over" the cap. Then they added individual handicaps for each match. I've not bowled it, because it's the same night as one of my REAL scratch leagues, but I understand that it's 32 teams, with a gigantic prize fund. And I've actually had bowlers argue with me that it was handicap... I guess they figure those added pins are just what they deserve. :-)
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Golf was invented by the same people who think music comes out of bagpipes.