I just tested with dvb-fe-tool that my version of szap-s2 correctly sets
STREAM_ID = 1
ROLLOFF = 20
So this might be a last problem. I never understood, why EUMETSAT
distributes an szap-s2 that apparently cannot set the STREAM_ID.
MODULATION = QPSK
is returned by dvb-fe-tool if you are in VCM (as far as I remember).
I'll make some more tests and possibly send you my szap-s2 source
tomorrow. I will have to UPDATE my own szap-HOWTO somewhat too.