No excuses, get a transmission pressure gauge.

[@b00st_SS]

I run a pressure sensor , plagued with shift issues no one has any advice for, gonna tear the trans down for the 3rd time and hope to find something. Harsh 1/2, soft and late 2/3 , 3/4 I can live with but still bit harsh , Holley adjustments on duty cycle doesn’t help

[@awesomeness7117]

You might be able to contact jasper and see what they do to fix it, I know on some transmissions they will block off some holes to make it last longer