Oh yeah, no canisters. Due to very limited space, only headers were used (and they were even shortened about 1.5 inches). I ran 3W canisters on a test stand and saw about a 300-400 rpm increase, but did not thrust test with the canisters b/c of the space constraints preventing installation on the vehicle. I'm not sure about the Mej. I think the blade profile is similar to the Fuchs 32x10, enough so that you would probably see similar results. It was unusual to get such low thrust on the Fuchs 32x10, but I tested it twice with consistent results. The Mej. may be a bit better b/c the Fuchs is a very slender prop and I think the Mej. is a bit broader, and perhaps thicker.