I don't think Daniel Reckward and RMV Germany would recommend the P3 for RB engines (on Tornado fuel) it it were a "rookie mistake"... There are a lot of other very experienced racers here, sponsored included, who often swear by the P3 - in all kinds of engines, Novarossi included... I'm the one who gets criticized and barked at for saying "in US forums they say don't run OS bla bla...." Everybody here runs P3's. I don't buy that they're only for rookies who don't know how to tune.

Which is not to say some other plug might not be marginally better. But again, RMV Germany would not be officially recommending P3's for RB engines with Tornado fuel without knowing what they're talking about.

And furthermore, I have to live with what is available to me - and for fuel that means Tornado, and for plugs, well OS are far, FAR easier to come by than Werks or Picco or these weird hot NR plugs for ex... But I'll keep looking for them..