Only an oldie -- an X-Drive 405 HR 10.5*, the HR for the non-conforming, high rebound face. Picked up the head a few months ago, got a couple of rounds in before the courses closed. Great feeling, sits square. Pretty forgiving for a smaller, older head. I think it came out in 2005. I have a 703 head coming, so I guess that's about 4-5 years newer.
Got into some JDM when I picked up some Bridgestone Access HD-635 iron heads cheaply, big heads, titanium with tungsten weighting in the soles, thin faces. Must be from 2001 or 2002. Got a set of the Access VP-02 irons (missing the 9 iron) at a good price, and their faces are supposedly thinner -- they seem pretty long and very forgiving on thin shots -- I guess all that tungsten in the sole gets behind the ball no matter what. Some nice buys occasionally on the Bay for the older JDM -- the newer stuff -- oy.