I was going to fly this on an E15 but for some reason I could not get it into the motor mount.  I know that there is a section of the motor mount that was deformed slightly because I used too much glue when I assembled it, but I've never had a motor that wouldn't fit with a little bit of effort.  Long story short, I loaded up a new E20 instead and let it rip.  Off the rod like a shot, lost it against the high clouds shortly after burnout.  Heard the ejection pop but never caught sight of it.  Put the wind at my back and started walking.  Got lucky in that there was a couple of folks out on the range recovering rockets and one of them had seen it land.  Recovered on the field with no damage.  I'm going to have to go with less motor or have better eyes with this bird if I don't want to lose it.