RE: TOC1 30% Yak 54???
Gibbs I have the same plane with a DA 50, yes it will fly pattern, but not as well as a "pattern Plane".
Its actually too big for the 2meter X 2meter size and 11 lbs. A C.D. may let you fly it at a local contest. IMO its a good beginning IMAC plane. Basic Imac is not 3-D.
If you havent flown a pattern plane, try it! They fly so precise compared to a scale plane.
Caution: pattern is addictive, in a good way.