Those heads were listed in the catalog that I sent you.

But.....they weren't available until now, and you wanted to get your build and book done, so it's probably a good thing I didn't tell you to wait for the heads.

Who knows, things could have continued to go wrong. The heads were shown at trade shows since 2007, and only came out recently so that should give an idea how big of a headache (no pun intended) they were for quite awhile.