@Mad11 Does ZO ever "bark" at you demanding more power even though no more is available? Most likely pulling a heavy line skier. My understanding, which can be misguided, is that if ZO does not have the torque to perform as programmed(maintain g forces when required) it will let you know. At sea level that usually means the throttle lever was not moved forward enough.
My guess as to why more powerful boats feel smoother is because they are operating in higher gears(more pitch, diameter) and really are....smoother. Profound i know. Much like an overdrive compared to a lower gear. Try to moderate speed in your car in first gear compared to fourth at say around 35 mph. Increasing pitch smooths out the pull and slows response time to target g force as well, which most, not all, of us find friendly. But if you add too much pitch, ZO might bark and you may overstress/heat your engine.