I'm going to get my boat on a level surface and check my engine height. I'm curious though, if I have an 8" Slidemaster JP, with a 2000 175 EFI hung on it, and 5&1/2 inches of the auger or worm shaft protruding from the bottom of my JP, isn't there a way I can figure my prop to pad distance using the 5&1/2 inch figure? Aren't there a few constants involved in this that you could use if you didn't have a level surface?