What gear for burnout with 727

That's the trick. Not letting go. I have a RPVB but with the stock console floor shifter. Pushing the button to shift while holding the line lock is tricky.

Yeah, I thought about that after I posted, it may very well be tricky, lol. Maybe you could come up with some sort of button to velcro on the shifter button so you could push the button down with the palm of your hand while still being able to hold the line lock.