I think what Grouse might have said in a different manner is that Knight is the first company to bring a rifle to the market place that the breech plug was designed and tested to shoot BH-209 reliably and for extended periods of time without maintenance.
Ray, as for the TC plugs, the Omega and Triumph plugs will shoot BH reliably out of the box, however, they will not do that over an extended period of time without drilling the plug out at some interval.
Western believes the Omega plug to be the best BH factory plug on the market (at the time), but in their estimation the Triumph plug is borderline in the long run. They would prefer that it were re-designed also and in fact have contacted other people about that possibility.
The Rod, I hate the cost of the rod, but once you have and use it, the cost becomes one-of-those-things you somehow ignore. If you are an occasional shooter you would probably have no need of the rod...