I had the same issues. Talked to Mark, and he recommended his Razor 4XL in 22P with extra cup. The change was noticeable instantly. I get so much lift now. But, it’s not as fast. WOT I am getting 60 at 5700. Could be engine height or small problem with engine, but I don’t want to go faster than that in a Margay.
I will be selling the boat soon, and will probably sell this prop and put the Tempest back on for the sale.