I keep expecting @
KingKlingeling to post saying he's managed a 1:37.5 or something crazy like that.
Managed to get a 1:38.1xx today in online practise but I was on the ragged edge and really had do overwork the tyres to get it. It could have been a 37.9 but for a tiny bobble in Turn 5 -- doesn't take much of a mistake to lose big chunks of time on that uphill run -- so I doubt that's a sustainable pace. Still mired in the 1:38.5's.
I'm finding that more rearward biases work well in GT6 -- I didn't do much no-ABS driving in GT5, but when I did it was usually with front bias with similar numbers to yours.
There's a lot of cars (like most of our MMShuffle steeds) where I run biases like 4/10, 5/8, and so on. I don't think I've run into anything yet for which I prefer a front brake bias. There are even some where I've run 0/10! (Deltawing)
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By the way, i tried a 3/4 bias briefly with the Screaming Chicken, and immediately hated it. Oddly enough I was locking up more often than with 4/5, and the rear was more wayward as the rears were locking just before the fronts, instead of with them.
Went right back to 4/5; it's a little tricky as the tyres wear, but it also gives a little 'kick' that helps counteract the understeer that shows up later in a stint. 👍