Lots of opinions out there for plugs.  I'm running the cheap B8ES copper core non-resistor plugs, gapped at .020; with a 5k resistor spark plug cap.

Some basic info (little internet research):

BR8ES

B= 14 mm thread diameter
R= Resistor Plug (no 'R' = Non-resistor)
8= heat range (9 cooler, 7 hotter)
E= 19 mm thread reach
S= Plug core

Cores:
S= 2.1mm copper electrode
G= 1.2mm fine wire nickel alloyed/center electrode
GV= gold polladium electrode for racing use
V= 1.2mm fine wire platinum electrode
VX= .7mm high performance platinum electrode
IX= .6mm fine wire iridium electrode

Can somebody knowledgeable chime in on pro's & con's of running the different core plugs (S, IX, etc) different heat ranged plugs (7,8,9), non-resistor plug w/ non resistor cap, resistor cap w/resistor plug, indexing plug benefits (if any)?   For quads in general and the 2-stroke zilla specifically.

I've read that a 9 heat range plug (colder) is Ok if you are racing under W.O. all the time and a 7 heat range plug (hotter) is OK if you putt around and don't use much/any full throttle.  Idea is only run the hotter plug to keep from fouling out your plug.  Personally I think the B8ES/BR8ES plug is the right one for the zilla and adjust your jetting to your quad/environment... but I'm no expert.