Not sure. CL combat is not only so obscure and hard to get info about, it is very hard to fly the planes well. It takes a lot of practice, and I always felt the piloting skill was one of the reasons CL combat is dying off. Ever fly a modern fast combat model with a Nelson .36! It is literally like having a tiger by the tail. That being said, it is the most fun I have ever had with model airplanes. That and pylon racing.