They feel expensive. Like 30 large... a lot compared to what he used to sell stuff for. Also, looks like the MicroZOTL is no longer sold? Or at least that is how it seems on his website.
Are you asking specifically about the Berning/German Physiks combo, or about the quadrature z in general? Can't help with the first question, but I have the quadrature z's in my system. Email me if interested.
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