RE: Broadhead ?????
I just got done running some #'s on my program, take it for what its worth, but the program has not steered me wrong yet...
If I had your bow, I would seriously look at the ACC 3-39's with a half out insert with a raw shaft length of 26.5 inches.
I ran it with 3- 4 inch vanetecs ( I use these and fletch them with a 4 degree helicle)
This arrow would weigh in at 412.4 grains and have an foc of 12.5% and shows the arrow falling dead center green on my spine chart ( which is optimum).
If you would go to a coc head such as a razorcap or g-5 with this combo, you should be in fat city.
Not only would you be using a coc head, you would also have a shaft diameter smaller than your head ferrule...
With the higher foc and the helicle on your vanes, you should end up with one of the most forgiving, deepest penetrating arrows for your setup..... Hope this helps...
BY THE WAY>>> I AM GOING TO BE A GRANDPA!!!!!!! I had to get that in!!!!