Susie Corona and I use the AmmTrainer3D software with one AmmSensor between her shoulder blades to demonstrate how we can effectively train the top of back swing posture. The software is set to give a positive tone when she is in the correct posture for all three angles; forward bend, side bend and turn. This method allows the golfer to quickly recognize where they should be at the top and so be in a good setup for the beginning of downswing.