I haven’t made a peep here in almost two years. But not for lack of activity on my part. I released a new version of my book in early 2014. I discovered a flaw in my vent and started working on it, never dreaming it would take this long to fix, going through two versions and 20 iterations. I built several private darkrooms in the process and just released a new edition of my book that reflects some of my new designs and thinking about retreating. The main change, small but important, is reflected in the format chapter, summarized in the first paragraphs there.