Help please. I've puzzled over this problem for a while, and I'm stumped. I've finished knitting and blocking the Alexi free pattern from Berroco. Next is sewing the shoulder seam. Since this is a horizontal seam, I've assumed the mattress stitch won't work well. Also the edges are patterned; not stockinette so the typical shoulder seam (similar to Kitchener stitch) will stand out against the cable pattern. I have already bound off the edges as directed by the pattern so three needle bind off is out.
Other stitches available that I've found don't appear to be very good choices either: backstitch and crochet.
Any help or suggestions anyone can give me would be greatly appreciated.