My transmission probably has the worn out TCC valve bore. There were strong vibrations during TC lockup and release and the issue was almost solved by eliminating the PWM control and setting the TCC operation to the "on" and "off" states by HPTuners. The issue was almost solved since some light vibration is still present at TC release. Do you think that putting a repair TCC valve is better than the tuning? I was thinking about Fitzall repair valve since it could be installed without removing the valve body.