Originally Posted by Mitco39

I believe you are wrong. Flat foot shifting is not lifting your foot off the throttle but still using the clutch to switch gears just as you would. With the RLTC it kicks in a rev limiter that you set that is tripped when you press the clutch allowing you to hold the throttle at 100% and not bounce off the rev limiter.

Since you never let off the throttle you do not bleed off boost which according to RL can shave 0.10s off each shift.