Thermocline should be very Noticeable if there is one. Not all lakes are deep enough to develope one. Lake conway may be one of those lakes. I dont know. I have never been to that lake with my graphs. If you not seeing one, there is a posibility that there isnt one there. Settings do not have to be dialed in too well to show a thermocline. I dont think that conway is a very deep lake, correct me if im wrong.