I've been wondering if this would not provide better protection while still solving the ground loop problems.
Experts please chime if I'm on the wrong track.
All of the negative wires are attached to solder tab (just like normal) and that tab is mounted either under tone or volume pot.
Then, .33uf 400v capacitor (for shock protection) is soldered to that very same tab on one of its legs and the other leg connected directly to the trem ground wire. (rather than trem ground wire being soldered to shielding)
Would this not provide better protection since the capacitor would minimize an electric shock from traveling up the trem & strings?
That's essentially what is done anyway- the capacitor is connected to shield ground (shock protected) The bridge ground wire is also connected to the shock-proof shielding.
Soldering directly to the bridge ground would shock-protect only the strings. The shield would probably be connected straight to the negative side of the jack. In a power surge, any metal switches or control knobs would not be protected.
Normally, the bridge ground wire is connected to the capacitor as you said, but through the shielding. This is only to make it easier to take off the pickguard, so there is nothing to stop you wiring it directly.