you really don't need to find an Italian threaded HS, unless you are a complete purist, because the threading is so close as to be practically interchangeable...unless you plan to switch back-and-forth between the 2 threadings repeatedly, as this will wear the threads down over time. Since you may never find another Italian threaded HS anyway (besides trolling eBay for a NOS Campy) why not make the switch to something like a good Tange and stick with the ISO (AKA British) threading from now on?