[AMSAT-BB] Help with CT-16 Sat Interface unit for ic275 / ic475

I have a ic-275 and ic-475 that i'm using for portable satellite work. I recently acquired a CT-16 satellite interface unit that appears to work fine. I can set uplink and downlink frequencies in each radio, turn the CT-16 sat unit on and have both VFO's track fine (either normal or reverse). The issue is when I select LSB mode for the uplink, it changes both radios to LSB. If I then try to change to USB mode on the downlink radio, it changes both radios to USB. Does anyone know what I need to do so I can run different modes with this interface??

73 Mark, N1MT