It was never one that was distributed in the U.S.
Sportsman Aviation made several models that weren't. Some were re-branded through Hobbico, Great Planes, Lyon Models and even Royal. Slight changes were made to some. For example the Hobbico Ultimate that was distributed years ago was brought in in the red, silver and blue scheme. In Europe is was under the E/Z brand and was the blue with yellow stripe "Bluehawk" sheme. Another one that is interesting is the Hobbico Diabolo versus the E/Z version. Absolutely identical with the exception that on the Hobbico version the horizontal and vertical stabs are aproximately 1" longer in overall width/height. I know this because I have both and have layed one on top of the other. At the root or base where these would be epoxied to the fuse the dimensions are the same .
Im assuming at Hobbico they said.....Yeah, we'll take "X" number of kits but we want these a little longer etc.
Smart marketing not to re-invent the wheel rather improve a touch.