Even if my favourite SMK track is Rainbow Road, it has become quite obvious that KB2 is my best one in terms of performances. After a 53"16 personal achievement, 0"24 better than Chris Balch's previous WR, I decided to hunt a barrier breaker WR, and eventually got it after three 53"05 and a 53"03. Finally, I managed to get a 52"98 but tried to improve it many times to reach the fastest WR possible since I had realized there was a big room for other improvements. Even if I haven't achieved my full potential on this track, I can be pretty happy with this 52"80 5-lap WR, especially because there is no flatboost at all (my personal specialty) ! ^^