I asked Andy at Pazon the same question a while back and here's his response:
F"or plug leads, we always recommend copper (or steel) cored cable.
This is the most reliable. We don’t advise using carbon fibre.
The Sure Fire system can be run without any suppressors, as it is less sensitive to r.f.i. (radio frequency interference).
However, we would still recommend using good quality 5k resistor plug caps (e.g. NGK or Champion) with the Sure Fire system.
If you happen to have resistor spark plugs fitted, then you should use non-resistor plug caps, otherwise the total resistance would be too high (reducing spark energy)."
I also have a Podtronics as well and run BPR7ES plugs with no problems.