Safety Circuit Discussion and Diagram Review

[Mnemoflame]

So, I've read a lot about risk of electrical shock from bad grounds and equipment on different polarities.  Is this a serious concern?  Below is a link to the Dohn Safety Circuit (protect all metal parts, not just bridge and strings; .022 uF cap and 220k Ohm .5 watt resistor), a diagram provided by DiMarzio, and my adaption of the DiMarzio diagram per the Dohn Safety Circuit website.  Can someone please check this over?

Wiring Scheme Functions

• 3 Humbuckers
• Master Volume
• Master Tone
• 5-Way Switch
• 3 DPDT (Series/Single-Coil/Parallel)
• Dohn Safety Circuit
• Star Grounding

-In this diagram, I do not include grounding to pot bodies, the push-pull case, or the five-way switch; is the grounding handled adequately for these things as is or do I need to make changes?

-Is the safety circuit correctly placed per the instructions on the Dohn Safety Circuit webpage?

-Is the goal of star grounding achieved with this approach?

-Will this setup be negatively impacted by the use copper shielding tape?

-How much of the wiring can or should be done with braided-shield cable and how is that kind of cable used (e.g. can you do both the hot circuit and the ground circuit with just one cable that way and do you ground the shield on only one end of a given run or on both ends)?

Color-Coding is for DiMarzio Pickups

• North Start is RED
• North Finish is BLACK
• South Start is GREEN
• South Finish is GREY
• Ground is BROWN
• Hot is BLUE

Dohn Safety Circuit

DiMarzio diagram:  3 Humbucker, 1 Volume, 1 Push-Pull Tone (Add Bridge), 3 DPDT (Series, Single-Coil, Parallel)

 

[mayfly]

I've done this kind of thing in the past - essentially you isolate your ground.  I personally would only do it with the bridge ground, since that's what you touch.

Having said that, I have not bothered with this for over 10 years.  PAs, wiring and amps have all improved to eliminate this kind of thing.  I usually just check that the bar's outlets are properly grounded with an off the shelf circuit tester, and then have at it.  No issues - but I have found some un-grounded plugs

 

[Mnemoflame]

So...any review of the quality of the circuit?  Any further discourse on the value or lack thereof in safety circuits?