Which Tuner for 7AT Shift Reponsiveness

Originally Posted by Tractionless

**Stay on topic please, not interested in jabs about the 7AT**

I was reading a thread last week noting a tuner can delete the OE 1 sec. paddle delay using an aftermarket tuner. I'm curious to know; which unit? In speaking with the UPrev reps on this forum last year they said no one has cracked the 7AT code and there's no improvement to be had.

Have there been changes since then or is this a feature that has always been available?

Thanks for any help you can lend.