Probably doesn't help you, but I have a P-Stereo, which is John Peluso's large-diaphragm single point stereo microphone similar to the AKG422. Great mic used up close on-stage Blumlein or M/S. It has a touch of sweet flavor to it which is nice close mic'ing acoustic guitar + vocals with it mounted sideways, which is usually how I use it these days. I just wish it had a super/hyper setting and would go wider than 90 degrees.
It's the only Peluso I have experience with, never having used the small-diaphragm cemc-6 which is more common for taper use.