Agreed, some posts attract people who shamelessly promote a certain brand so it degenerates to a slugging match with no knowledge exchanged . Its as if they are paid to promote that particular brand and they will come to its defence like bees to a honey pot, their brand of engine is always good, its always you that don't know how to tune it. The rpm figures they quote sometimes can never be replicated. Same goes for radios, there's always the JR and Futaba guys bashing themselves silly when the only ones making sense are drowned out. I have a strong suspicion these "noise" is made by people who have undeclared links to the brand they are promoting.