There are a couple of problems with finding JC II's writings. He has had at least two "handles" in his years here on SBO. And most of those are under model "H25" since that has been his project for ten or more years...
I am impressed that JCII even comes through this site on occasion and responds to messages. He has responded to one of my posts and I did not even seek him out. One day, I hope to meet him and since his facility is about 30 minutes from where I live, there is a good probability we will.
As for history, most of the history is tacit knowledge at this point. This site is as good a source as any for that kind of knowledge. The current H33C owners know more about the boats that anything that might have been chronicled in write-ups. The difference is, contributions here are posited (as they are) rather than normative (as they should be).
I sent a request to Hunter for information on the H33C, and the response that I received was that there isn't any manufacturing data available, history, or production notes. I received a PDF sales brochure as the only data they had. I can send you to a link on my website if you are interested.
From what I have read, the H33C is a great sailing vessel. From my own bench analysis, it fits the parameters that are important to me, and it came in at an acceptable price. These are the things that matter to me; draft, stability, comfort, big but not too big, equipment/rigging and performance while being offered at a reasonable price. In comparing 75 boats, the H33C came in at number 14 on my list from a technical standpoint. From an aesthetic, condition, location and price perspective, it was a number 1 sweet match.