I grew up reading (and sadly, writing) that MkII Tone Benders were “the one you want.” So not true! Mk1s and MkIIIs are every bit as awesome. MkIIIs in particularly are seriously underrated. The MkII certainly has the most muscle, but the others are, to my ear at least, more nuanced and interesting. It was fun seeing that old Experience info sheet, which I must have read when it was new. A big mystery, which no one has ever addressed to my satisfaction, is what the hell happened with the so-called Mk1.5. It preceded the Dallas Arbiter Fuzz Face — in fact, for all sonic purposes, it IS a Fuzz Face. It soon vanished to be replaced by the MkII. The MkII is closer in design to the MkI than to the 1.5. So who created what, and in what order?