Oct.
Well I can't say about Sept. but we go to Ky lake every fall in late Oct. We have found that to be some of our best trips down there. We have been in April, May, and Oct. and if only can make one trip it will be Oct. We get lots of fish in April but there are lots, LOTS of boats to contend with. In Oct. we are lucky to see 3-4 boats out there. Weather is just right usually. We seem to catch bigger crappie in the fall. We also like eatin them pesky little yellow bass. Not big but good eatin.
No water lice (jet skis) that time of the year either.
Crappie spawning and morels popping up at the same time. What was God thinking when he made that schedule. It's pure torture every spring deciding which to do.