250-500cc Spark plug confusion, B8EG or BR8EG?

2012 WR300:

Checked a couple of the workshop manual PDFs now, and they all say BR8EG in the general specifications, but further down in the manual they all say B8EG.

What would be the best one to go with? B8EG is likely better but will it damage CDI or something in the long run?

I tried the non resistor B7ES in my WR300 and the engine ran well but I had problems with my Trailtech speedometer resetting and doing funny things because of the induced RF interference, I then changed back to the BR7ES and and problems solved.
I did not notice any difference regarding the engine.

Thanks. Engine runs fine, even with B8ES instead of B8EG. But as long as I know people runt the resistor plugs without having issues with cold starts, poor performance/weak spark etc, it's definitely the way to go.

Thanks for the input! Did you have issues with fouling spark plugs when using 8s, or why did you decide to go with 7s?

For my riding style (slow / low RPM enduro) I got better spark plug electrode color with the 7 grade. I had some fouling with the 8's before when the jetting was a little off, later the jetting was spot on but I never decided to go back to the 8 and never had an issue about it ...

If your riding style is more WFO I would probably not do that ...

non-resistor on the MX ignition and resistor on the enduro steup is what i recall