Yeah, Hell Razor. I actually had three of them in different class sizes A, B and C, in the late 1950's early 1960's.
K&B 19 Green head, Dooling 29, and Dooling 61. Not really competitive for the time but a lot of fun anyway. Mine were all Monoline...actually good fliers, very stable and good speed trainers. Also a couple of Dizzy Boys with ST29's that were marginally competitive but somewhat difficult to fly.
Randy Cuberly