I don't think so either, my old FSA Ti BB with roller bearings last me a long long time.Was made aware of fake CK's by another rider, and my main concern was keeping same tolerances between upper and lower bearings of road bike.
Last Friday took the bike to my good 'ol pal at Easton, he was able to pop out the old ... YST PH-233 headset
This headset lower section was integrated to frame and I really wanted to upgrade and loose extra weight from treaded / quill, adapter set up.
He made a nifty adapter as frame has funky conical design, narrow frame could not aloud lower CK half to fit within frame, I was not pleased with end result at all, very happy never the less to loose the old set-up, so he made me feel better by installing a sweet EC90 SL fork., that alleviated some of the pain, but it really bother me that frame rose by half a head set, it lost height on top side but geometry was compromised, also drag coefficient was not as good..
More resources were pulled and with a spare adapter on hand, shopping i went, to SM's Supergo.
Borrowed a CK Race Crown and over imposed to adapter piece, it seem that there's plenty of room to spare, so I purchased lower half of a CK, went home, hacked it and extracted bearing, placed it over the spacer and indeed, there's plenty of room left, actually outer diameter wall thickness would be almost same if not thicker than in CK's housing, sans middle bulged section.
I would have just machined out bulge, but, inner frame conical design, mating surface would not be as one.
driving to Easton in a few, should have it all done by the end of the day and happy Aero frame to fork swiftnesses should be back.
by the way, the new E's Tempest 2 wheels are much lighter that M's Kysilums. GO EASTON !
they got some sweet prototypes in there too.
Posted by Freaky franky 
riding a a Jazz fest on 02/22/07
