What a surprise, Z shows up with the usual WB is the problem answer! Haven't ya beat that horse enough yet. IT'S DEAD ALREADY, BURY IT[:@]

I wonder if, by chance, you practice with the T-heads before hunting with them, and if so, do you re-sharpen them. Even if you only shoot them into a foam target a "few" times, they will still need the blades changed or sharpened to get full penetration. You're set up is plenty good to use T-heads and the dreaded no "problem"WB!