Whether you are totally new to learning pistol technique, or you have one leg that is worse than the other and you want to correct the imbalance, try using these tips to help you get better.
1. Above a Box
This is a common drill especially when you are not yet able to do a full squat. By working with boxes of different heights, you can train the movement pattern and get down to the ass-to-grass position.
The pistol can be trained in the same way.
Put a high box behind you, squat down and back until your butt touches it, then stand back up. This is the touch-and-go method. You can also unload by sitting on the box and rocking back and forth. This will generate momentum to help you stand up. This little assist will help you to go down a little further and be able to come back up. For the best results mix up both methods into your training. Lower the height of the box until you can get rid of it entirely.