Tamiya doesn't even have a headquarter or assembly plant in China. Their older kits were all made in japan n the newer ones made in the philipines. As for manufacturer I thought BB Rich was based in Japan as well. Since when does production location really matter in these things? If one were to tell you oh hey the iwata custom microns are made in china would you stop getting them? For me as a consumer having the item that suits my need and does just as good of a job, looks and holds just as well, with equal build qualities, warranties (which allow us to exclude all those no name Chinese imitation airbrushes out of this discussion), and cost less available to me, heck I will buy it without second thoughts. Ask any badger 100 owners, and they will tell you that. = )
Just for specs sake, Tamiya HG double action or single action uses a 0.3mm nozzle which, if you really have to bring it up, is equivalent to the iwata HP-C/CPlus/CH. The HG SuperFine uses a 0.2mm nozzle which you find in same size on those HP-B/BPlus/BH abs.
I just started using a Badger 100SG with a medium tip and so far really enjoying it. The small built-in cavity really promotes easy color switching and cleaning when I do smaller details. The medium tip by human eyes looks bigger than the Tamiya SuperFine (own one but not really experienced with it). Comparing to those two the 155 anthemn's nozzle looked...."huge". I have a 100LG with a fine tip and a bunch of replacement fine and medium tips/needles on order from dixieart, so I will await to see how fine badger's fine tip really comes out to be.
Macio4ever: If you have the HG SuperFine and got the Gunze 0.2mm, can you see if those two tips are interchangeable? 'cause that will make things REALLY interesting. of course by no means am I suggesting for you to force one tip into another and kill both brushes.