Thanks for the great step by step!
Installing a TRE without a doubt "cured" the hesitation ocurring at low RPM throttle roll ons and general somewhat general erratic low RPM throttle response I was getting.
No change in performance just smoother shifts and no concern in slow turns.
The TRE idea made sense to me as I noticed when the bike was cold there was no problem.
As I understand it from the manual, the Engine Coolant Temperature Sensor advances the timing (via the ECM) until it is warm. Then the timing is retarded in gears 1 - 4 and the problems ocurred.
The TRE solved the timing issue, solving the performance issue.
I have never believed in the "Silver Bullit" repair but I had literraly done everything else to make my Busa run kinder in the city with no success.
The only engine/tuning mods done are a full Akro System, PCIII, PAIR removed, Air Box Mod and K&N.
PK Busa