Article 1: The Armswing.
According to John Jowdy, there are 3 types of armswings - relaxed/free, free up/muscled down, and completely muscled. A free armswing means that the arm is completely relaxed at the shoulder and gravity is doing 99% of the work - and since gravity is a constant - your swing is more consistant (think Norm Duke). A free up/muscled downswing (or it's inverse) is where you allow gravity to take the ball back, but you muscle it thru the downswing -- the inverse being you muscle it to the top of the swing and then let gravity take control thru the downswing (think PDW). The final armswing is where you control all elements of the armswing using muscles and not necessarily gravity. (Think Doug Kent or Ryan Schafer)
Appending to Article 1: Your question -- you actually asked about targeting more than the armswing. The general rule of thumb is "if you're not looking at it, you probably won't hit it." I know that if I don't laserbeam my eyes into my target thru the entire swing and followthru, I'll put that ball anywhere between 1-10 boards of where I wanted it to go. If you're pulling a Wes Mallott and following a target line back to the dots during the swing - that's fine as long as it's consistant and it works for you. Just realize that his technique is more an exception than the standard.
Article 2: The Release.
Most coaches talk about the release being where the hand is behind the ball up until the point where the thumb leaves the thumbhole, and the full weight of the ball shifts to the fingertips. This usually happens (ideally) as the ball passes the ankle. Once the thumb is out the fingers sort of move in a J pattern (for righties) or the turning a doorknob analogy. This coupled with the unloading of the wrist at the same time initially seems to be as natural as juggling 3 live porcupines one handed (in my opinion), but I've been working on it since The Gathering where I got some tips from Magic Carpet (Ron) about the release. Another good source of info is our own JAnderson, who I'm hoping will chime in here and correct any obvious holes in my response.
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