I have two Sub37 at the studio, mine with 1.2 latest firmware and a friend's one with the Subsequent 37 CV Firmware 1.3.2.
So I know for a fact that this firmware works, but is it a good idea ? I noticed that the USB connection is not as stable with the 1.3.2 (but I have problems too with the 1.2, USB seems not to be a strong point on those products ...).
Any toughts ?