I'm sure you will get a lot of different opinions on this, but I figure a 1/2 swing is when you take your arms back enough to have your arms parallel to the ground. That equates to a 9 O'Clock position with your hands. A 1/4 swing would be a 7:30 to 8 O'clock position with your hands, and a 3/4 swing would be around 10:30 hand position. What you have to figure in here, is how far back you take your hand in a full swing. If your hands only go to 10 O'clock for a full swing, you'll have to figure out all new numbers for all your partial swings accordingly. I'd recommend you go with the 8, 9 and 10 O'clock hand positions for a start, and see how far you hit the ball with each of your wedges.