... or least so I thought, until several days ago where upon closer examination of a thrifted RLBL jacket that I had the shoulders taken in (by no more than 0.35-0.5 inches), I noticed some extra crease in the back of the jacket when it was hung. Wearing the jacket did not seem to to resolve the problem either, and I began to understand that it may be due to the extra fabric that lingered when the rest of the jacket was taken in down the middle (as done when taking in the shoulder).
My question is - would a more skillful tailor be able to address the "excessive fabric crease" problem that arise when shoulders are taken in by proportionally taking out those extra fabric as well, or is this one of those taboos where it should not be attempted in the first place because it causes all sorts of problems?
Here is another taboo that one should not attempt. +1 internet if you know what I'm referring to: