I have a 232 and have had them used on me in sessions over the years. My understanding is that it is about the same as a 312 in terms of output power. The 312's difference was in terms of being digital and programmable for custom programs. Is this correct?

I've found the 232 can range from pleasurably erotic to excruciating. I understand that different people experience electricity differently but for me much over 40% and I need to be well restrained (and effectively gagged if noise levels are an issue )

I have experienced one set at maximum output while wearing the famous blue bands (accidental triggering by the Domme....but that's another story ) and it's not an experience I would want to repeat.