Thanks a lot, Cue! Those materials help a lot. But as per tip diameter, AIUI, it's about treshold set in driver, so material used *doesn't* alter diameter (more conductive != smaller diameter allowed). As long as there is conductivity between Your hand, through stylus, to area very close to the screen, it will be OK, as long as minimal surface where capacitance charge was detected is met. --- ...whole concept is about having metallic "cross" at the end, made from thin metal (but, it still makes capacitance change to be detected "virtual" circle, as big as arms of cross), + transparent, non-conductive thing, that is there for convenience (+ stabilizing construction, as "cross" from thin metal would be easily bend), and most likely, for having something that doesn't scratch screen, at the end of metallic cross (which would scratch screen quickly). /Estel