Oh yes ,,, I just spent about 2 hrs or more rethreading my DD's serger and it is just like mine at home.. I was ready to toss my hands up after 6=8 times of starting over from step 1.. the last time... there it went as nice as you please.. good thing cause i had had it for sure...and the brother has to be done.........#3..#4...#2..#1 in that order and following the book and color code one would think,,,,,, welllllll nope,,, then finally,,, so i know how you feel..been there done that..thank god it was not twisted.. well,, i cut my threads and start from new each time so.. that will not happen i hope..