Hows that?They have more torque?More speed? More controllability?

You cant say they beak less."You have to do alot of wrong to break a nitro".Not necessarily true.Lean it out a little too much and there goes your engine.
Dont break it in right...Again.Poof.

And a bl with metal pinion and spur, as sycho would say, "is just as loud if not louder than my nitros."