That's the graph I was looking for, but it doesn't differentiate RS-19 and RS-29 (it's still dominated by "yellow"). A NASA racing buddy of mine recommended (for me at least) trying the Pagid Oranges (RS4-4 in the graph, link here: http://www.brakes-pads-discs.co.uk/p...rbon-based.php
) in the back - to raise temps at the high end (600C in the graph). I have rotor crazing in the front but not much in the back with Pagid Yellows in all 4 corners - which I believe means I still have room for more rear bias. It remains to be seen if I am actually good enough to get a benefit when I get around to trying RS4-4s in the back.