The ring modulator sounds much different from 1.2. I'm reserving comment until I work with it more.
Please correct me if I'm wrong:
The ring modulator on a CS-80 is mono.
CS-80V RM before 1.5 was mono.
CS-80V 1.5 RM is stereo. In addition to being inauthentic, it is distracting. The overall perceived loudness of a note changes as the MOD lever is moved. This is not good. Try this as an example: Leave the RM Attack, Decay, Depth, and Speed sliders off. Turn >M< on and while you're playing move the MOD lever from off to around 50%. Hear how the power of the sound diminishes? My guess is because the sound is being modulated in the stereo field, instead of staying unified. Also, clicking the >M< while a note is sounding creates an audible click!