Denny,
Let me know if Bill's link works (it is my original website that has not been updated for over 8 years). I'll be able to keep that hosting service (my employer) for a few more years (until I retire), but I do not update the files/web-pages on that server.
That page at Bill's link is not the original engine-color article (it is transposed copy of the words). On my "active" website, I have posted a copy of the original PnPP article by Robert Hensel of the VCCA (same information).
