The most common and least understood problem reported is that of propeller RPM surging. Surging causes can vary widely. In extreme cases of radical surge (100-400 rpm) the installation should be checked for airframe approval. Our facility has seen a number of instances where the wrong part number overspeed governor was installed and would cause interference with the primary governor (CSU). This happens as a result of the overspeed governor diverting oil prior to the primary CSU reaching 100% rpm. When the OSG diverts oil, the rpm decreases and the primary CSU attempts to increase rpm again. As rpm increases, the overspeed governor once again diverts oil to complete the cycle and thus the surging problem is exaggerated.
Looking at box stock props, the Trophy is a good but the Pro Max should offer better overall performance and durability. The 8″ jack plate might offer a little better performance when you marry with the right prop. I think the Pro Max, with its tremendous cup wrapped around the blade tips, will give you what you’re looking for with the set back. The Trophy is ″ in diameter. The Pro Max is ″. The props share the same hub size. The Pro Max doesn’t have vent holes nor does it need them. There’s enough exhaust venting over the small hub. The plastic blow out ring fitted over the front of the Trophy would hurt the Pro Max’s planing performance. I think the Pro Max would be a fun prop for your set up.