Well how about that Bill I for one learned a new something. I do know and I do remember that MECOA did at one time carry GMS engines I remember seeing that web site show GMS engines and had those engines on their "trade in" deal that MECOA had long time ago. So naturally I thought that MECOA made GMS engines as well as TH engines being that Tower Hobbies engines had a very simular appearance to GMS and that the mufflers that GMS engines had also was identical to Tower Hobbies engines so my information was just merely observation and engine comparison with experience on my part.