I had a Panther in 1987, that boat didn't run well with any of the Props you are running. I ran Lazers, and a pair of Vipers. The mirages didn't give me enough bow lift. Call Dennis Cavanaugh at Mercury Racing. He will me glad to give you some recomendations. Nobody is better then the "Top Man" at Mercury's Prop Lab. If you need his number let me know.