My files all use 100% throttle. They just change the rate of getting there. Pretty sure 1st got to 100% at 100% input, but they act as quick throttles for subsequent gears eg 100% to at 80% input
Tuneboy disables the PAIR valve which injects air into the exhaust and causes a burble. Unless you have a leaky exhaust I don't know how to cause it. My bike does occasionally pop during shifts on hard acceleration, but the tune file won't work on your bike, sorry
Less chance of burbles