[font=trebuchet ms]There are exceptions to pretty much anything, but the concept 'The One True Ground' works most of the time for audio equipment. Everything should be grounded at only one point - the sleeve of the jack. All shield braids, pickup ground connections, tone control grounds, all of that stuff, should go directly to that one point.

Test out your connections before you button it up. Even following the diagrams very carefully, you could get pickups from different manufacturers out-of-phase, simply because they may not define the 'hot' side of a coil in the same way.

I couldn't see the pic you linked to. I use a very strict set of firewall rules, and I disable Activex, so a lot of graphics get blocked.[/font]