I had one, been there, did that, flew it, perhaps 10 times, had the tee-shirt, ended up using it as a rag to wipe down my Skylark.

On it's last flight, it went up, I made a left turn, it went right, then over and into the ground. It never flew right, way to heavy, and was just not worth the effort I put into it. And, I followed the directions verbatim. Hey, if you like 'em, knock yourself out.

CGr.