Thank you for the info and education,easy enough to understand now,appreciate ya!Shoot, cavitation is the propeller on a boat sucking in air. Like when you pull the plug on the kitchen sink and you get that spiral vortex making noise as air is sucked into the drain. It usually happens when the propeller is lifted to high. The cavitation plate is that flat horizontal fin right above the propeller. If it stays at or just under the surface of the water when on plane, you very close to having the motor adjusted right.
When cavitation occurs the boat is usually above half throttle and thus the transom is being lifted to the top of the water. Two things happen when cavitation occurs. The RPMs jump up fast and the boat loses the pushing effect the propeller should supply.
Usually just takes some adjusting to get it corrected.
No forgiving needed.