In the initial essay, I noted that Pirsig had found a following in the UK. That website is http://www.moq.org/. In looking over the dates posted on the website, they don't seem to be that recent (for example, there are several entries from 2006).
There are several essays posted there, for example, this, "A Review of Dr. McWatt's Essay on the Metaphysics of Quality," and an Interview with Robert Pirsig with Julian Baggini of Philosophers Magazine Online. There are other assorted papers, postings, and discussion groups.
My general impression and comment is this: the very strengths which have led the English to admire Pirsig (their superior education and academic training) are the very qualities which seem to lead them more in the direction of academic (as contrasted with apocalyptic) commentary.
I think that the true import of the Metaphysics of Quality is in the apocalytic sphere (as characterized in my initial Essay and relating to the "truth-finding process") and not in any continuation of academic philosophy as we have known it.
We have reached a breaking point. I don't think Pirsig's English admirers quite get it.