GTR Setups Anywhere?

Hi, I've googled my brains out but can't find a source of setups for this
thing. There's precious little on the Guru forum or BHMS.

I've been using the Saleen with the default rennen (race?) setups and have
gone for consistency first. I'm going around Spa in low 14s now in race trim
and thought it's time to start tinkering. I really prefer saving some time
by starting with a quality setup (Achim and Andreas spring to mind) and then
adjusting to my own preference. But, like I said, precious little seems to
be about.

Any ideas anyone?