Hi lewis, not sure if we've spoken or not though i do recognise your car every time it goes past me
I took 2 clean filters with me (2xinner & 2xouter), couldn't believe how filthy it was after only the 1st heat, so cleaned it & then replaced it entirely for the final. The stalling does seem a bit random though ie, clean or dirty filter, hot or cold engine etc etc. I'm hoping i may have just got unlucky & that it may have just been a small stone caught up in the flywheel upon landing
As regards to the track, i like it slippy as i find it suits my driving but last night was something else, any dustier & we'll need foglights
Maybe each of us should bring a broom next week & turn up an hour early, lol.
Dan.