[AtlUmpSteve]

The key to ASA 5-10 is that it does only refer to championship play. And, it also specifies 1:40 in JO fastpitch play only. So, one might conclude, theefore, that this only applies to games required to have this time limit per ASA Code 510-O.

Secondly, the rationale described in 2005 when the rule was incorporated was "Now that time limits have been authorized, there should be a definitive starting time." Not that there is some magic in the first pitch, just that it should be definitive.

Guaranteed that your local league isn't playing strictly championship rules; and you already stated it is a slow pitch league, games not covered by ASA Code 510-O. So, if there is a definitive start time, then you have followed the intent of a rule which doesn't specifically apply to your games.