I have the TCI constant velocity/pressure all I can say is it works,.. but look I have maybe 20 miles on this 700r4, I still have some adjustments I think need to be made, as far as shift points, I also believe I chose the correct taxi/cop car feel. It is a crisp shift without being to harsh.Yet your experience my differ. I also put a trans pressure gauge on the column. I guess i should call TCI and make sure my pressure is correct. I made a mistake when I bought the gauge and it only goes to 100 psi, Reverse pegs the gauge and forward stays between 60 and 100 or so PSI