I don't have them yet, but I did the same research just yesterday....
For an even gap, it has been recommended to use:
Front: ST2033021010
Rear: ST2038021010
That's probably what I'll end up ordering on the GB.
Do a search for spec, pinks, usdm and you'll find several threads about this from about a year and a half ago.
Looks like we have a common interest, lets see what we can find out before ordering!