EFI Live mostly when I truck pull.
Still have the Diablosport Predator though as my laptop is not always available.
The said part is I run stock tuning 99% of the time. I keep the Diablo handy for clearing codes as it's quicker than waiting for the laptop to boot up on my LBZ.
Some year when I can afford a built motor, I will be experimenting with EFI Live a little more. I am too worried (and too broke) about piston failure so I keep the "kiddy" tune on.