Here's an interesting twist on psar I'm working on. The chart below shows a 6 tick range bar on TF on 6/21 with a psar set to Acceleration Increment: 0.0002. The software is sierrachart. When psar jumps to the other side of price, a green line is placed at the prev value. The white line is average of the green line and current psar. As you can see at point A, the white line can act as focal point.