My first day with Stage Traxx, working my way through, cant explain this though. Ive tried these midi commands but cant understand why some are blue and working, others not. I'm sending to a RCF M18 digital mixer. Channel 10 controls rev and compression settings: Channel 10: PC5, Dry at play. On, PC6 at 5secs, off near end of song: PC5 at 2mins 31 secs. Channel 13 controls guitar simulation presets: PC45 at 1sec. Must be doing something wrong but can't see it!! Thanks, Mel.