Great questions Mick, let me address the latter first: I have several reasons for not doing it: I just started a new job with a considerable learning curve which takes more time and mental energy than my old job, so I don't have the time at work; I just enrolled in a part-time master's program and I'm in the middle of my first accelerated course which demands the vast majority of my personal time; as my screen name states, I am no longer an engineer at a PV manufacturing facility [due to plant shutdown and outsourcing manufacturing] and, as a result, no longer have access to the programs used for modelling various scenarios. I do believe presenting the math/physics in a documented proof of why the product can't substantiate their claims is a rather critical accompaniment to the letter itself. Really the only reason I got on here to post was that I remembered reading this thread a few months ago and given that I'd already spent several hours studying prior to this morning's post and one of the topics of my next exam is the Lanham act, so I figured it would be an appropriate study break. Why would someone send such a letter? For starters, refer to your post on 2 April 2013 (#61 on this thread): "Because it might not work, and people might waste money investing in it." Furthermore, Jazzy mentioned that "debunking bunkum is our self-appointed task," isn't part of that to put a stop the people pushing the aforementioned "snake oil"? Lotek also writes, "My personal gripe, why i bother to "waste my time" on this is because the whole idea of funneling tight public research money into this is appalling to me when such isolated one off units will never be the answer to full scale solar power production and appear to me little more than another pipedream and waste of time like those stupid 1000mah solar window hockey puck things. I feel grant money could be better spent elsewhere, on more industrial systems. not stuff that looks like toys with more effort put into public appeal than industrial functionality." One other point not mentioned at any point earlier in this discussion is that the solar industry has suffered numerous "black eyes" and I know of at least one on the horizon, so it doesn't need V3 making things worse by getting people's hopes up only to have them realize later that they were duped (and hopefully they didn't invest any money before making that discovery). Clearly there are a lot of strong feelings about this, and some people in this thread seem to have either temporal or financial resources (or both) to dedicate to stopping the perpetuation of this scam. It seems to me that the first logical step is doing what I stated in my earlier post, sending a C&D letter to V3, hence my question.