I'm surprised to see you running that Brake Bias, @Noodleguitar. I seem to recall you running 44-45% BB in GRAsim? Personally, I've found 48.1 to be the max BB for me. I use it as a baseline when learning the track, or when reacquainting myself with the car. Anything more and I'm likely to plow straight into the wall. IMO, the V8 is very obvious when you lock up the rear tyres, and everyone is familiar with the e-brake-like death-spin that locking up the rear-end of the V8 can cause. However, it is hard to tell when it is locking up the front tyres due to the car's natural understeer. You may think the car heading straight to the wall is just normal understeer until you start to dial back the brake bias. The difference, for me, is most obvious in T2 and Forest Elbow. Watching the replay, even at 48.1%, the front tyres smoke like crazy all the way into the corner.
The first couple of laps I can run 46.1%, and that was always my goal BB when running GRAsim (I never had any hope of making it to your brake-bias), but I can't run that the entire run, so I eventually add 0.5-1.0%.
If anyone is still struggling with locking up the rear-end under braking, even at 48.1%, it might be a down-shifting issue and not a braking issue. This isn't a GT3 car, or even a GT1 car, you can't just slam down the gears, even if you're blipping. Try spacing out your down-shifts a little more that may prevent the dif from locking.
The first couple of laps I can run 46.1%, and that was always my goal BB when running GRAsim (I never had any hope of making it to your brake-bias), but I can't run that the entire run, so I eventually add 0.5-1.0%.
If anyone is still struggling with locking up the rear-end under braking, even at 48.1%, it might be a down-shifting issue and not a braking issue. This isn't a GT3 car, or even a GT1 car, you can't just slam down the gears, even if you're blipping. Try spacing out your down-shifts a little more that may prevent the dif from locking.