Wow. How did I miss this? I guess my circle of information has shifted dramatically in the past 20 years.
~20 years ago I spent a large part of my free time with the Mission of Divine Mercy. They've always been an interesting mix of very conservative and yet marching to the beat of their own drum (the opposite of traditional stability).
For me they were a big push in the right direction and by the time things got especially weird (mostly the speaking in tongues, but some other things as well) I had already met Matthew, been introduced to the SSPX, and was primed to move on to the TLM.