Transgo TF2 grinding TV valve

I recently installed a tf2 shift kit in my 904, I did everything that the instructions said, including grinding down the tv valve...I've been reading that I maybe shouldn't have done this. What will happen now that is grinded? and if its bad to do that modification why does trango recommend it?

And because its been grinded can I make any other adjustments to make everything shift right? If I understand correctly it effects the kickdown?
Author: admin