Prancing horse in Japan!

Oh lord - for I have sinned. 

Electronics:
TC1 on 8 and TC2 on 2 feels best for me. TC1 on 7 is an option if you need more interference during slides.

Brake Bias maybe a tad to the front with high fuel.

Adjustments (in that order)

• play with steer ratio to your liking. It's high to reduce sensitivity and response
• reduce caster if the rear remains tricky during weight transfers in the esses
• try reducing front anti roll bar to reduce front axle response during transition.
• try reducing front bump damping to reduce front axle response during transition
• brake bias forward for high fuel loads potentially

Driving

• Turn 1-2 needs careful trailing, else the rear will step out
• entry into the esses is crucial, try only with off throttle, no braking
• avoid first kerb in the double right (degner1)
• aim for late apex in hairpin
• chicane try 1st gear in right hander, 2nd in left hander (short shift) - use only a little of the green kerbs.

LFM:
Just reduce fuel load to 45/49L. Balance should become even more neutral. Adjust rear ride height +-1mm to your liking.