In my opinion Navionics East is definantly worth the money, expecially if your going to be on ky lake. It will save you a ton of time narrowing that big ole lake down. I'm no expert down there but if I was staying at Shawnee with a small boat I would spend some time in Johnathon Cr....there is a free day use ramp by the bridge if you think it is to far of a run.