I won't use the Cossie on track as I have a track car that I don't mind killing so the r888 would be for the road but keen to try the r888r.
Mike rainbird quoted:

6 degree beam



Fast road:
Front:
Camber: 1.5° neg
Caster: 3°30'
Toe-IN: 2mm
Rear:
Camber: 1.5° neg
Toe-IN 3mm

Track:
Front:
Camber: 2.5° neg
Caster: 3°30'
Toe-IN: 2mm
Rear:
Camber: 2.0° neg
Toe-IN 3mm

AGGRESSIVE track use - these are the full on Grp A tarmac settings! (can only be achieved with 10mm longer drive shafts and OE steering rack (aftermarket replacement ones use tie rods that are too short and need extension pieces available from Reyland Motorsport to achieve anything more than 1.5° neg camber). This is for use with slicks and track day tyres and is not recommended for road use, will reduce traction in a straight line in the wet :
Front:
Camber: 3.0° neg
Caster: 3°30'
Toe-IN: 2mm
Rear:
Camber: 2° 45' neg
Toe-IN 3mm