That only gives mediocre performance, about the same as an LA.40. I checked a bunch of various size motors over the years and haven't lost the notes yet. The M Airscrew props have a lower pitch than advertised which gives a few more revs than an APC. Not always a bad thing, but something to know. I wonder what the MECOA motor is taken from, a K&B? If so, maybe the head takes the longer reach plugs from the "old" days, rather than the mid reach OS/Enya types. That could slow things a bit as well. I don't recall any .46 motors with a pull start. Seems kind of like a nice option.