1. Yes
2. No different than they do now.
3. No difference in a crossbow and an bow on the way they shoot. Yes, you would still need to practice the same as before.
4. It definately did mine. The type of string you use can also effect the sound.
5. 3 PINS - 20 YRD - 30 YRD - 40 YRD. Please don't think it is safe to effectively shoot farther.