I didn't make it to 480 rows though, only 456. That gives me 228 stitches to pick along the side. I'll still keep 120 stitches for the central opening, so that will mean I will graft 54 stitches for the sleeves.
Pattern: Traveling Zebra by Louise Robert
Yarn: Bis-sock by Biscotte & Cie
Needle: US 2.5 (3 mm) & US 4 (3.5 mm)