Use two hands to clear the garment. Hold the garment out of the way with your weak hand and draw with your strong hand. Once the gun is clear and on the way out, drop the garment with the weak hand and join the draw on the pistol as if there were no garment. If you only use one hand to clear the garment, there's an excellent chance your're going to get things bollixed up.
If you want to shoot...shoot...don't talk! Tuco
USAF Munitions 1969-1992