RE: 9C and 9CS - Who is using 2.4 GHz - Happy?
General feedback I am getting here and at other sites is there are more 9C XPS users than Spektrum users. That may be due to timing of release of modules but generally the feedback is positive on both.
It seems that both companies have released them with large receivers. I don't see a package that contains a small receiver from either Spektrum or XPS.
Futaba modules don't seem to be shipping yet.