Traction Issues?

[Nords]

Hummmm, could it be because I'm running the Intrax on max softness but since fitting the Goodyear F1 assimetrics, the CSL doesn't grip particularly well. I was hoofing on a bit today on the roads around Chipping Norton and braked for a corner. Yes it was bumpy and I was going some, but the ABS kicked in for a significant length of time and I wouldn't have expected it. Tested the brakes/tyres on a smooth bit 2 minutes later and the tyres gripped much better (they performed as I would have expected), so bumps caused it? The front tyres don't seem to grip around roundabouts, hence allow much understeer than I would have expected.

I also went through a average 50 mph zone on the M40 and was followed by a merc of some description. The end of the zone came up, dropped to 3rd and floored it to leave him. The DSC light flashed frantically and it held the power back for 3-4 seconds before gripping and accelerating. On the way home, I was driving up Birdlip Hill and went around the roundabout in second, following a slow MCS which moved over eventually (I was then in third), floored it and again the DSC light lit up like fireworks night.

Pressures are 34 psi allround (cold), Intrax on max softness (I'm going to try the 35 clicks off max next). No snaking under power (it keeps on a straight line) so not RTAB?

Thoughts?