ok i’m attempting to knit my first sweater and it calls for a three needle bind off at the shoulders. I understand how the 3 needle bind off works, but i’m confused as to which strand of yarn i used to DO the 3 needle bind off! If each shoulder (so 4 when counting back and front pieces) is using a separate ball of yarn, then when joining 2 shoulders together…there will be 2 strands of yarn! Ahhh the confusion starts! Which strand do i use to do the bind off? And what happens to the other strand of yarn?
I hope that this makes sense!
Pleeeeease help me ASAP!!