Yes on the jackplate, it really does not help moving up or down. I was able to get the RPMs up moving the plate up but the boat did not perform. So I can get it to spin above 5500, just not with the load of the boat as well as reaching top speed. 5500 RPM with just me or with a tourney load. No bogging sound, does not sputter, just won't go past 5500 RPM. I bought this boat from a freind and it was his Pro boat, he was able to get WOT just after breakin but has not been able to after that. I think he is more expereinced driving the boat than I am and if he cannot do it then I am not sure what I can do different.