Always enjoy the video's. And I noticed that you're manually shifting and wondered what TCM tune you have. I'm hoping it's the latest EC tune, because that's what I just installed in my car. And regarding the Wavetrac diff., I read that it comes with their standard carbon-fiber bias plates that were chosen for best all around performance, durability, etc.; but apparently they have other bias plates available that are used to customize "fine tune the bias ratio". Could this help you and Les maybe? You perhaps already know about this, and have already had it built for racing. It's just something that came to mind when you mentioned that the Wavetrac seems to be falling short for you.