Q, got so busy with his company that he just didn't have the time for a hobby company (PMI) as well and let Brent follow up with what they had in stock and had built to that point. But Q is not involved in it anymore at all. Brent was really getting into Racing and building motors and was also getting way to busy for the small niche market. They had Awesome concepts and great products, but just not enough calling... Brent may have had a few items left but over all I think they both kind of hung up their aprons on the venture.
But there is still stuff out there for the OHC's, you just have to search high & low to find it now.