Some words of advice and/or warning:

• Try bamboo or similar needles - the Captiva is very slippery
• There is hours (literally) of finishing work (there is a lot of seaming that needs to be done neatly for it to look good!)

That said, it was a relatively easy knit and just required patience and persistence to finish off. The bottom edge curled up immediately the ribbon ties were fastened (not just the fronts - all the way around), so I did a crochet border to keep it sitting flat.

Mods/Notes:

• back & fronts - 92 rows from gs edge to 16 1/2”
• fronts - 4 rows is 1” from gs edge to start decreases
• front neck extensions - 20 rows is 3 1/4”; don’t cast off - leave sts on holders to graft later to avoid that small seam in center back of neck
• sleeves - cast on 66 sts; work 13 rows rib; decrease: p4, p2tog, p6, repeat from to last 6 sts, p2tog, p4 (58 sts); work 5 rows st st.; decrease: p14, p2tog, p12 twice, p2tog, p14 (55 sts); work further 16 rows st st (6” from beginning of sleeve before raglan shaping instead of 3”)
• block to dimensions for size 36 except for sleeves - block to only 11” wide at ribbing, not 12”
• Seaming done with DMC Satin Floss (S415) as I thought the Captiva would be very bulky - I divided the floss for the seaming: 3 strands for inserting the sleeves and the side & sleeve seams; 1 strand for sewing the casing in place
• I could only find 3/8” and 7/8” gray grosgrain ribbon for this - the 7/8” fits perfectly inside the casing and makes it lie nice and flat around the neck
• Crochet edging to keep bottom edge lying flat when ribbons are tied: DC into center of 2nd stitch from bottom all the way around

And the bottom edge rolls up as soon as you tie the ribbon. :(
I’ll try to improvise a crochet edging to see if that will help.