right, so continuing my mission of experimentation for this period between christmas and going back to work:
i have just built a silicon fuzz face. its not finished since it needs housing, but nevertheless it is making sound. i quite like it, though having said that its a circuit you could spend hours dicking about with... which is precisely what i'm not going to do ;)
anyway, it sounds very good with strat leads, which was my intention. time will tell how often i use it.. or if i put it in a box