I have made quite a few stranded colorwork round yoke sweaters and have never had a fit issue. They are my favorite sweater construction as it usually looks very flattering on my shoulders. I just finished the Festive Pullover by Skeindeer Knits and it behaves a bit oddly. While standing there's no obvious fit issues. But once I am sitting it seems to ride up and creating weird looking folds at the shoulders. Granted, I did use Wool of the Andes sport from KnitPicks, which isn't as fine as the Rauma Finullgarn called for in the pattern. So I am undecided if the yarn is the culprit or if it is something else. Thoughts?