I had a Dirty Birdy in the late 70's I built from a kit. Then went on to a Typo and finally a Phoenix 8. The P8 was the best flying once it was trimmed out. The Typo was a very close second. Both used Super Tiger for power. A little less power, but they lasted alot longer between rebuilds. Not to mention a very stable needle valve setting. Never did build an Escape though.

Dave