I've got 25 minutes next week from Chautauqua to Comair. I do not think that I will have a problem because, just as with IND flights, the one that I am taking from SDF in my experience has usually been early (and is almost never late).
The only safeguards that I am taking are to check my bag so that I don't need to wait for the gate checked stuff and to take a seat toward the front of the plane in order to be able to get out the door quickly. I've done it before quite a few times with connection times at CVG under 30 minutes and have never missed.