VA just passed a crossbow season which brings up some questions since it is all new to me: I ordered the Barnett Quad 400 package along with some extra bolts. Haven't received it yet. My questions are as follows: 1. Are the bolt threads the same as arrow threads for a compound bow? In other words, can I use the broadheads from the arrows I used with my compound bow? 2. I have both mechanical and fixed broadheads (if they do thread in). Which would you suggest? 3. Do I need a cocking strap for the crossbow or is it "doable" without one with a 150 lb draw weight? Thanks in advance for any help you can give me!