with the set up your shooting, your pushing a fair amount of kinetic energy, enough that I'd recommend a large cut mechanical. My personal recommendations would be the grim reaper whitetail special razortips, the NAP killzone, the Swhacker, bloodrunner 2 blade, rage.
Now they all have their advantages:
The grim reaper-big three blade cut
Killzone-designed to perform on even hard angling shots, both blades will always open at the same time.
Swhacker-the main blades will be razor sharp entering vitals due to the way they deploy.
Bloodrunners-they are designed to provide at least a 1 1/16" cut even if they don't function properly, I've never had an issue with them functioning properly though.
Rage-with several companies having comparable broadheads now the only advantage I see is they are so popular you can find them almost anywhere.
What it boils down to is shoot what you like, because with your kinetic energy you can.