Our Mixed League has the "three Frames and you're out" rule. We have used it only twice, that I can remember. It allows the other team to move on...get things done and have some 'extra' time with the family or what ever they want to do. We never rush the frames, we do allow the other team, if there's a legal lineup, to slow down and wait a bit, but if they are a team that wants to 'push' the rules on every little thing, then it's "getty up and go' bowling to get the three frames in.
For our league, it's all about sportsmanship...you show it to someone, it will be shown in return. In all fairness, (we bowl on a military post) we don't always hold to 15 min, but more than 20-25 and it's "time's up" . (sometimes it is slow getting on post..checking cars and all).
One suggestion for your next years rules....Put it in writing, allow a fair time limit and hold everyone to it, not just the "bad" team, but everyone.
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AZ Guy aka: R & L Bowlers Pro
rlbowlerspro@cox.net
www.rlbowlerspro.comSleep is over rated.