If you care about the width of the seam when cuffing you should go with inseam. To taper you have to cut open the outer seam and then the original seam will spread out so it will be wider. Nothing to bother about if not cuffing but if you want to have width of the outer seam as it should be then yes. I only want to taper from inseam when I have selvedge jeans. Otherwise outer is fine for me.
9/30/15 at 2:11pm