Forgive my ignorance, this is technical beyond my experience. When you say mill the crown is this refering to turning down the chubby section the crown race sets on so that a 26.4mm race would fit? If so, could I shave .3mm off that section and use the crown race included in this
headset? I can't tell if one is include, however if not, the peugeot crown race is 26.5mm and could be used, correct?