Got home from work with the intent on doing an hour while the washing machine ran on a warm afternoon. 87 laps in a row later (ish, there was 5 minutes sitting still while I put some washing out), a battered and beaten McLaren 650s finally covered the 4.563km of tarmac in a time I was satisfied with.
In the end I only reclaimed one tenth to the line, leaving me nearly 3 tenths short of optimal after improving my S1 and S2 PBs, but I don't care any more.
21.796
31.014
Had seen 21.755 in S1 and 30.932 in S2, had seen splits to the 2nd sector that were even better than the last lap I posted but managed to pull out an absolutely shocking final sector to go 1 tenth SLOWER than the lap I had before that made me very angry, so it was certainly a gruelling task grinding this one out to end up with a time I want.
Good luck to everyone, and those gong for some banzai laps in the next 15 hours.