This is a doublesided Wingspan with a center.
It is based on maylin’s Wingspan.

Correction/Wedge:

Repeat Sl1p, knit 1 stitch, place TM, knit to end, turn. Sl1 and knit to marker, turn.
When you’ve got the 10 live stitches end with Sl1p, knit 1 stitch, place TM, knit to end.
On the next row knit all 80 stitches.