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Message: <blockquote data-quote="Lil&#039; Blue Rude" data-source="post: 354983" data-attributes="member: 4627"><p>Could be how the impeller was sharpened. I've seen boats that couldn't hardly plane after being sharpened incorrectly. I've always sharpened on top of the leading edge and outboard jets claims you need to sharpen on the bottom of the leading edge. People sharpen them both ways but that's the method that's worked best for me. Look at a new stainless from mercury and look at a aluminum from outboard jets and compare the leading edge, then see which one performs better. The stainless should hook up better. It's because of the way the leading edge is on the stainless. It's hard to find much info on this about outboard jets but if you look up inboard impellers they talk about the leading edge pitch and all that stuff and explain what effects what.</p></blockquote><p></p>