This is a great post TFOX Thanks....and thanks for the video.(sound would have been nice though

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I agree, good form is important because if you have good form you will have the ability to make good shots from not so good positions. Notice I didn't say "perfect" but good. I say this because it's hardto be "perfect" although we all should strive for perfection it's just not always attainable.
But with"good" form you will start to build the ever needed muscle memory that is so important. Muscle memory is theway your body will "program" itself to repeat a motion the same way time after time. By using solid repeatable anchors and good formevery time you are "programing" your body, so when you do need to make a shot from a not so perfect shootingposition, you will be better prepared to make a good kill shot.
That's just one of many reasons...."why good form"