So Cataco creek is great and with your john boat I'd go to sharps ford launch so you don't have to run across the river to get to it. Arrowhead is always good as you know, the I-65 bridge is doable from there as well as the mouth of Flint creek. You can also go up the Flint on Hwy 31 and there is a launch up there you can get right on the creek up above. The Hwy 31 bridge before Decatur can be good and you can launch from the marina right there. Indian creek is about the same.