Originally Posted by themyst
Flatlining isn't overly noticeable via the butt dyno when you're just doing WOT blasts on a highway or anything, but if you do ANY form of competitive racing (legal or not) you will notice the difference.
Just look at the video in the OP, that could be you.
My honest opinion, the fix isn't coming in the near future because it requires 1. new tables to be exposed 2. TCU reprogramming.
Most people generally rip 2nd or 3rd gear on the highway at most and call it a day.
However, in a sustained pull rowing through all the gears flat lining timing makes a huge difference in the performance of the run, compared to a single gear pull.