Dont mean to butt in, but the reason u r seeing lower numbers is due to the Pressure Control Solenoid is PWM controlled and the lower the current/more off time, the higher the line prssure. Resulting in firmer quicker shifts. If u have any questions i may be able to help. I havent tuned any trannies yet, on my list of things to do, but I have 20yrs as a trans tech and now how the inner workings operate.

Anywho, lowering the pulse width to the PCS will make firmer/quicker shifts but take it easy. Too much line pressure can be as bad as not enough, you will break things. Remember u want quick and firm not holy crap I just s