Most local clubs weigh 7, and per state regulations allow you to keep a limit.
National tournaments are usually catch and release after weigh-in. National tournaments typically put a lot of pressure on the fishery, making them catch and release reduces that pressure.
Local clubs are mostly that, local guys getting together to fish, and throw little money in the pit for bragging rights. The locals are going to catch and keep their limit even if they aren't part of the club tournament.
In my honest opinion, guides put more pressure on a fishery then a local club tournament.

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