Thanks Joseph. In the help file for FMHEncode1 and 2 : "Output channels
are in order W,X,Y,Z, R, S, T, U, V". So it looks like it's using some
other ordering standard or one of its own.
The listed order is FuMa, and lists all the 2nd order components.
You might want to test against another encoder. Matthias Kronlachner has done a great job with his ambiX suite, and also includes a format converter that you can test against. Also, you can go straight to the horse's mouth (Furse's free plug-in set) to see if FMHEncode is giving legit maxN-FuMa.