I remember back in the early sixties buliding many flite streaks. I lived on a military base in Canada and you could buy the kit for $2.19 . I didn't build them very light and used Veco 29s in them. Thought they were great until a sailor give me his as he was getting transfered. It was beautiful. It was superbly sanded and finished but it only had a Torpedo green head 19 in it. It was very light compared to mine but at age 11, I thought that little engine was a joke. Any way I went to the field to give her a try and was astonished at how agile it was. Inside and outside loops were unbelievably tight and slow compared to my heavy and overpowered flite streaks. That taught me a valuable lesson that to this day, I still think of that Flite Streak when I'm building and powering my RC planes. Build it as light as you can and don't overpower it and it will fly like the dickens.[8D]