Honest to gosh, Wes, the only McCoys I ever owned were about a half-dozen of the RV Redheads. A couple of friends tried (and promptly ruined) them back in the late '50s - early '60s, and I decided they were a PoS engine and never bought one. If I'd known then what I do now, I'd have been a bit more forgiving and realized it was the fault of the modeler, not the engine.
That Sharkbat was a pretty good Slow Combat/Stunt Trainer, wasn't it? H-m-m, wonder if Lew still has plans . . .