My problem is that I'm losing so much oil pressure on hard braking on the public road and I'm not giving it anywhere near the level of abuse I'd be giving it on track. It's also filling a catch tank on a spirited drive across the moors which would be the equivilent of just 3 or 4 laps of Coombe. I think I'd be wasting my time turning up TBH. I noticed the SBD breather mod wasn't done so I'm doing that but it's not going to solve the underlying problem.