I'm pretty sure that's the case.
Some others I haven't looked at in a while -- sunvalleygolf.us -- they had some nice clones, especially in irons in softer 304 stainless. Geotech has some nice stuff, but they're Japan based, and only available in the US through TourSpecGolf. Hiskei has some really interesting heads, along with their Wave shaft, and they're available through John Muir at clubmakeronline.