I like your idea and as far as wasted energy were talking about a very minimal amount of amps, earlier you said half an amp IIRC. So that is not much! I like your idea in its simplicity, however I don't like your designs inflexibility. I'm going to see if I cant make the system what I want exactly. I need something to do anyways and a way to learn. I'm going to assume you don't mind?
Should I start my own thread and will you give input when needed?
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I've started my own thread... This post got lengthy :/