It has always bothered me that the Rogues pitch cv is transposed in comparision to standard Cv pitches. That is, on modern Moogs 0 volts output(0.04) is an E key. On the Rogue 0 volts is the key of F. This can be adjusted with the CP-251, but why tie up the valuable mixer? You cannot tune the Rogue to follow this standard but it can be easily modified. All it takes is an additional 100 ohm resistor soldered at the begining of the series of keyboard resistors. That is, desolder the violet wire leading into low F. Solder one end of a 100 ohm resistor to low F and re connect the violet wire to the other end of the resistor. By doing this, it distances the key of F from 0 volts. The keyboard now needs to be completely retuned.