Originally Posted by
JohnDThompson
Just get a new ISO headset with the appropriate stack height (you haven't trimmed the fork yet, have you?), mill the head tube to ISO dimensions and install the new headset.
No, haven't trimmed the fork, don't plan to. I need to add a cable hanger in there somewhere anyhow, which will take up about 3-4mm. Is this milling an expensive idea?