Originally Posted by
KCT1986
If you are using common 4mm housing, then it will generally require an end cap. In addition to supporting the end and outside of the housing, the end cap will center the housing and keep it aligned properly.
If the housing end sits at an angle, the supporting strand can migrate into the opening for the inner cable (which is usually much larger than standard shifter cable). See the effect below.
Yes, figured it out. Brifter end is OK, the other points need the caps. I have both plastic and stainless caps for appropriate cables. So far so good.