I didn’t shoot it, I bought the Carlson long beard .660 amd had the best results with apex ninja tss. Shot at 50,40, amd 20yds
I realize that you said that you want to shoot 9's, but unless you just cant find the Ninja 8.5's in stock, I would hunt that setup and save dropping 75-100 dollars on another choke to try. That is a solid setup based on the pictures you posted, as your forty pattern is beyond smoked, and you look to still have between 12-15 in the vitals at fifty. And the 8.5's hit harder anyway.
You just need to keep in mind how tight that twenty yard pattern is. That is a touch tighter than most 20-yard patterns I see with that load. You have to aim small if he is at fifteen steps and it is not always easy to do when the adrenaline is flowing and he is weaving and bobbing across the ridge. Hope you score in the woods soon.