Wading streams start to get really slow this time of year. Allot of the bass seem to move down to the main river around Sept 15th...Creek mouths can be really good this time of year. I'd rent a canoe, float, and camp on the river. Gasconade, Meramec, and the James river systems usually produce the biggest fish, but you will have to share the river with other users. Gigging season is open, so expect some lights and jet boats at night. You can't gig in blue ribbon trout water....so maybe do that instead.