Chris, that helps, but in reality all it's really doing is masking the basic characteristic of the shell. If you're running a small track with low speed squirts between hairpins, I can see why it would work well. But on a National track with high corner-approach speeds, and tricky corners at medium speed, the Zytek and HB Raynard are the ones to use. HTH

I understand what you are saying about the carbon t-bar, so you've put yourself in the position of having the rear so stiff it is overworking the tyres, and the grip goes. You can fiddle with it all you like, but a 12L t-bar, 30wt oil, green (olive) spring and 5000wt side damping is the cure you need.

Get a BMI DB12R - nothing to break! If I can't break it...