Cheers guys :P
the boomer is off getting tuned up at the moment, but i did get the wah fuzz, the muff, a skreddy zero and my other colorosound wah (vanilla no fuzz) chained up together for A/B purposes and also in pursuit of an ASBO.
interesting thing. the skreddy zero is a fuzz designed to do that smashing pumpkins "zero tone" which is again an op amp muff. A/b ing the 2 tells me that fuzzes really do need to interact with an amp who's power section is working to a reasonable extent as, to be honest, they really sound nothing like each other.
the coloursound is awesome chained up with a good OD or a cooking power section, really 70's fuzz tones, think Bolan, Lizzy, Ronson etc. Only real problem with it is that you have to open up the back to access the mini pots which are the volume gain and tone for the fuzz section. Also the sweep is so extreme on this wah (way more throw than a crybaby type) that the bottom of the sweep (heel down) is so bassy that it gives the impression of volume loss and picks up radio stations lol still tweaking that trying to get the balance right.