I too am having "bouncing off revv limiter" issues as well with my tuned TCU. I have run it once at the track since the mod and it bounced off limiter on both of my passes in 2-3 and 3-4 shifts which (obviously)slowed my times. I didn't bother notifying EC since they didn't bother to answer the last two PM's and texts I sent them. I'm hoping to head back to the track next Friday(2/10) and run some passes with datalogs to see exactly what's going on.