Originally Posted by unworthy1

Thanks for posting the interesting link: some good arguments and I'm half-way to believing in this as best practice (for a specific and limited application).
The thing I kept thinking is: how many "All 531" frames used something other than the 531 steerer (which AFAIK WAS supplied as part of a complete tube set)?
Whether cheap split and rolled mild steel or a "butted Nervor" steerer, you can't call that "tout 531" in my book.