For now I'm putting the stock Yamaha 3 blade 17P back on. I run heavy most of the time and the Mirage Plus is great on my boat for smooth days running light but when I'm heavy and its rough (which is most of the time) I have a hard time staying on plane below 28mph and it just doesn't get the stern lift needed and the motor just sounds bogged down at 4200 RPMs. At WOT I can only get to 5200 with that prop. I installed an Edge Hydrofoil but one whole side snapped off one day so I lost faith in that. I think I'm going to try the Rev 4 17 that you tested out next.