Signal is good from 55.5W to 137 W with the loop through. Just have to remember to switch Az back to a c band sat before going back to 4dtv channels.
So, I guess problems must be in the power pass switches, they are the only thing taken out of the mix. Diseqc seems to be working ok with c and ku sats.
Would there be any reason to go with a 0/22 kHz switch instead of the diseqc, they are sort of pricey.