Here's a post from Dan on the golfwrx forum that sheds some light.
<!--quotec-->funny thing is that in order to keep those headcovers from dropping my swing really was maxed out at 9-3. distance-wise, i was hitting it between 90-100% of my normal full swing.<!--QuoteEnd--><!--QuoteEEnd-->
For many people, myself included, what feels like a 3/4 backswing is actually a full backswing. Try to get your swing on video and you'll see if this is the case.
On a grip note: I recently found that moving the club in my hand gave me a much better feel at impact, and allowed me to feel like I could really turn through impact without hooking it. The grip was weaker like this:
Instead of the bottom of the grip (6 o'clock) running from the base of the pinky through the first knuckle on the pointer finger (left hand), I moved it to run from the base of the pinky through the second (middle) knuckle of the first finger. When closing your hand, this has the effect seeming weaker to me. The sensation I got was the the grip was really "in my fingers" for the first time.
After hitting it with this grip very well, I decided to push my luck and try a "no-hands draw" (or at least what I think it is) by just turning harder through the shot. It worked and I got a nice little draw.
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Dan's reply:
This is fine with regards to the strength of the grip as long as the club is running DIAGONALLY across your fingers.......the grip you have seen and been told about is a guide and the key to it is finding your spot with relation to the strength that is "your" strength and what works for you providing you are working with the guide lines.....the lines you have seen drawn on the glove are indicators and some will want the club closer to the outer line and others closer to the inner line
