Splitear_Leland,
Take the time to sharpen the tips of the thunderhead on a stone also.
The little time necessary will help penetration alot.
As has been said, practice with the broadheads now and resharpen the tip and change the blades before you go hunting or have a set for practice and another set for hunting.
Good Luck!
Greg
"Getting close to the game is the joy of Bowhunting for me, the harvest is a bonus."
Live 15 ft Python after eating a small Antelope!