I posted this in the Bowhunting Forum and looking to see what you guys have to say. How much "energy" does a mechanical head need?My fiance shoots a diamond rapture lite at 43lbs with a gold tip 3555 and a 75 grain tip. The draw length is about 27". Not sure what kind of speed shehas. I guess I would rather have her shoot mechanicals but Im worried about her set being enough to make them effective. What do you guys think?On a side note I know theres really no way to test the set up other than on a real kill, but I dont want that to be the time to realize it isnt enough.