That's correct, R = resistor. The original design would run just fine on non resistor plugs, and mow all day long so long as you never tried to mow in reverse. I don't know if they modified the shielding on the module for later models, or stuck with advising owners only use resistor plugs.
"Forget pounds and ounces, I'm figuring displacement!"
If we accept that: MBG(+)FGSF(=)HBG(F1) And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1) Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT? PB answer: It depends.
