Based on those figures "Mad", 3 minutes on and 2 minutes off gives us a 60% duty cycle.
8 minutes on and 7 minutes off gives us a 53.3% duty cycle. (I may seem a little picky here) but where did the other 6.7% of run/ cooling duty go?..
Maybe it was not accurate minutes logged to begin with.
Coldman,if i am to believe in actual savings without compromising my customers products, than a show of good faith would be an excellent start to your marketing.
I'd take advantage of the 50,000+ members here and hand out a free Endocube to the select few who feel your product is worth our independent test drive, so to speak.... Who knows, it may prove it's worth, or it may crash and burn. Your choice.. (I've given my advice freely @ my expense/hour)