I have found that the weight of the boat seems to make the difference, when fully loaded, 47 gal gas, 44 gal water in the live well, and a passenger, my boat goes to 65 with no problems, when I had the live well empty, half tank of gas, no passenger, when I went 62 it started a slow chine walk, which go worse, so I had to shut it down. The 6" slidemaster jack plate has the cavitation plate 5" about the lower step. The boat does not have pad, v runs all the way back (slight v). Does anybody else had this problem, and what did you do about it. It takes more gas and time to get on plane when it fully loaded, and I do not plan to run that way. (2016 Stratos 201 Evolution xl, with 250 Mercury Pro XS with 25P Fury Prop)