I would be more interested if they were the bolt on carb versions, then its easy to swap between rc and cl. I still have a good stock of nib ame motors as well as a couple big migs and 74s. Plus the 5 I have flying. The 061 is such a great do all motor for rc. My tds sit in boxes but I still fly my medallions all the time. For someone getting into 1/2a they should buy the lot. The dragonfly is a nice little motor. Not a powerhouse but good and reliable. I still keep a few black widows for the same reason. My go to reedie as they give me the least trouble. But in the end the norvels get the most flight time.