Please spare a thought for those of us that try but do not quite achieve.
Don't say "It's easy" All things are once they are explained, you have been trained, and you find you can actually do it.
Quite.
I've no problem with helping someone who genuinely wants or needs assistance and appreciates it when given. What does annoy me are those folk who dismiss the whole subject with some careless remark like "O, not
electronics! It's so boring, and anyway my models work OK without me having a degree in rocket-science". These are generally the folk whose models are rescued most often or who spent most of their sailing sessions with the model on the bank with the top off. I've no time nor sympathy for them, and I don't have a degree in anything!
Plastic
I think you'll find the phrase was "earthing
to the shaft tube", which makes a slight difference to your reply.
Jay
I don't think anyone is suggesting that much is necessary in the way of RF reduction beyond the motor because, as Plastic says, there's not much else which comes close as a source of it.
DM