It's a shame that the "veterans" there are defined only by post count. Real veterans of the laser industry have been essentially drummed out by you, the meter-tinkerer, and a few other bully baiters who hide behind the skirts of Dave and a few others who only want to maintain their authority there without challenges to that authority. The skirt just mentioned is the unfair and self-perpetuating rep system. Everyone who joins is presumed to be a teenager, and treated as such. That's why when serious questions are asked about lasers other that the brands of pointers sold on the web or the semiconductor lasers in them, there is nobody there to answer them. Unless they ape the information from Sam or someone here (no slight intended to those people).