Gauge pre-block 19sts=10cm 5mm-needle, yarn held double

Mods:

Long tail CO 4,5mm
First pattern repeat on 4,5mm, after that switched to 5mm
CO 2 extra sts for each armhole.

Sleeves:
Knit sleeves first (in the round, 2-at-a-time, magic loop)
PU 4 sts in armhole, decreased during next 4 rounds = 51sts. Next time I´ll decrease those extra sts first after some rounds, with maybe 4 plain rounds in between…
Sleeve´s dec as written.
Slipped stitch rib (5 rounds, still 5mm needle) as follows:

• round 1 k1, sl1wyif
• round 2 sl1 wyib, p1 I-cord BO (on 5mm needle)

Body:
Dec. as written until I got 40 sts for each front (inc edge sts), then worked straight.
Slipped stitch rib at the back, worked as for Slipped Stitch Edge (5mm needle).
I-cord BO on 4,5mm needle.