Saw that lap steve, nice time
I did the 20.8 on a quick couple of runs with Paul Thurstons setup (not a great lap, could probably equal the time I did on yours so not a bad set)
Then attempted a full fuel run, started with 12.1 gallons and almost made it when I lost it on the exit of T1 with 1.9 gallons remaining. I'm finding it really hard to get consistent times here, T1, Knickerbrook and Lodge are all places I can lose huge chunks of time by just being slightly late on the brakes/turn in, I found Suzuka a lot easier to get a nice rhythm going...
Your setup lasted nicely though, think I took a good chunk of psi out and tried the 5/5 rear suspension you mentioned, hard to compare with the different fuel levels but it seemed that tweak made it slightly more tail happy but with the benefit that it was much more controllable. I did set a 1:20 with about 4 gallons remaining, but it was a high one, it's got the pace right at the end but the tyres are a bit worn so it makes it tricky to hook it all up.
yeah putting them on 5 seems to let it have that nice sliding back end that's controllable.
I totally agree tho it's so hard to keep the same lap times going, racing is gunna be interesting and hard to pass gain...

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