First of all, the core group of guys that we bring to autocross almost exclusively ran with BMC. Every event, we were there. Some of us even "trophied" in their year end standings, myself included. I never had issues with anyone at the events personally, but some of my friends certainly did and my comments previously reflect that.
Secondly, they started catering the courses to small cars. They started coning off the course to make it difficult for what I consider a normal car to be competitive. A few of us started noticed it becoming a trend after a few events and started having conversations with them to see if it would continue being tightly constructed or if they would open it back up as it used to be. This wasn't just an observation from our friends, it was noticed by almost everyone we spoke with. Never really got any real answers, but we hoped for the best. It simply wasn't fun paying $40 and struggling to get a clean lap. But we kept coming back.
The event where 2 of us left, myself included, wasn't contentious from what I remember. We were annoyed that yet again, the course was so confined. We asked for our money back and were granted it. From what I remember, we only wanted half our money back since we made a couple runs, they gave all of it back though. I don't remember name calling or anything really. Is this some sort of "story" in the anals of BMC?
I'm friendly with Stewart and Rick who run it now and were key organizers back them. In fact, Rick actually bought a Mustang. We had a few conversations about this very topic and he said they had plans on opening it up again.