Silverd2 (Sam) has posted this on Audiworld and Quattroworld.
Edit: he posted it on QW and linked to it on AW.
For some reason it's been deleted from QW. Don't know why, but he appears to have left the building (on both forums).
I'm glad someone saved it and for the wayback machine...
And I think Gruven copied the whole thing onto their site too as a DIY.
Edit: link here to Gruven DIY (copied from QW) as a pdf
It's all out there somewhere.