Very frustrated, bugs or the way disney intended?

[FauxPaw]

Basically with "take aim" you just hold down the control key to get a strong shot. I havent really learned how to control it perfectly-it seems random to me. At times I will hold it all the way til it reaches the top and it will do less than 300. Other times it will do 1000-so for me its kind of random. Maybe others have figured out the exact way of using it. It does a good job of killing high level creatures though. I have maxed the take aim.