Sorry for writing a book...
You didn't write enough of one. You left out some VERY important data. What arrow weight? What speed? What KE does your bow put out?
I really wish you guys would post that critical info EVERY TIME you brag about your 'devastating wound channels' with mechanical broadheads! Say, for instance, someone who reads this stuff, gets all fired up and heads off down to the local WallyWorld to buy mechs to shoot off his 30 year old, 6-wheel, 40 pound draw Bear Whitetail.
I wouldn't want to know someone made a screw-up like that based on something I wrote.