Cub48- I can't tell you how much advantage you will find if you use the SE300 hydrofoil. Some people hate these but I have one on my 2017 Z18 and it is the best performance improvement ive ever made. I put it on within the first month of getting my new Z-18 and would not do without it now. I run the 150 four- fully loaded with fuel livewells and a passenger you can eaisly get on plane with 3000 rpm.. I had one previously on a 20' Stratos for years and loved it. It has a clean slim design that looks good. If you get one do not even think about the clam,p on version. It will come off. bolt it directly to the cavitation plate using the 4 ,1/4" bolts and nuts. It comes with a really good template making it easy to center and install perfectly.