My version came from Semroc. It is another one of my earlier efforts. It looks pretty good from a distance but I try not to let people get too close to see the placement of the fins. Very asymmetric. I have built and flown it with the 13mm booster Semroc makes for it but it behaves better as a single stage. I didn't know this was a repro until well after it was built. I do recall that the photo of the liftoff was the very first time I ever actually caught a liftoff.