This may be useful for some of you. My S2 Exige NA has always had a good gearchange. On the road it is very tidy and never baulks. On track days I used to find that third would go missing on 4-3 down shifts. This would be worse on hot days but was never bad, certainly better than the V6 I tried.
I fitted stiffer engine mounts, never expecting them to make any difference and they made no improvement. They did add some vibration at idle.
I then fitted a cooling air hose from the passenger side scoop ducting air on to the top of the cables on the gearbox. It is just a standard hose from demon Tweeks of 50ish mm diameter. Since then I have done two hot track days, result, perfect. Not a single baulk or slow shift. The gearbox is as good as my s1.
This may not work for others and my gearbox was pretty good to start with. However, I fitted the cooling early this year and have now had the chance to try it in anger.
see you Wednesday