As promised, here are photos of the Electro-Harmonix Holy Grail PCB board (Rev A), from the populated side...otherwise known as "the top." Yes, "Rev A" means the first release of the Holy Grail Reverb pedal.
In time I might even document the wire connections, which are labeled with individual letter codes.
They do make cool stuff...
The first Holy Grail post on Redplate City, with more photos etc., can be found here.