Thanks for the explaination, Billy. I know I lost money because a dealer was too proud to admit he didn't know what he was doing. I don't build or sell jet boats so I certainly don't. I have read where prop tunnels are ill suited for jets but from what you have written, it's all up to who's building it, or, setting it up. It's surprising how limited the information is on the subject in Tennessee, or the South for that matter. From my own personal boating, and experience with dealers, I have come to the conclusion that only a special custom-built boat will cover our waters most efficiently. When I say custom, I mean starting from scratch. Seeing input on the subject is enlightening. That's why I'm surprised when someone is put off by opposing comments. I've made embarrassing mistakes on the subject many times and relish solid information because of that reason. Others take offense. Thanks for knowing the difference.