Just an earth-shaking, cue cleaner update. I've been using Blud's method now for several weeks (damp rag, wipe with dry cloth) - the shaft is pristine, and slides like a mother after burnishing (though I do use a glove). I used Soft Scrub about once a week for 2-3 years, and the shaft always felt a little sticky soon after cleaning. I took the shaft in for a new ferrule last week, they measured it and found that the Soft Scrub had reduced the diameter of the shaft - OUCH (now my new shaft does not match the old shaft).