Binding off for leg openings

How-to Questions
1

This is my second dog sweater so I know I’ve done this before, but I can’t for the life of me remember what I did! I’m on the row that begins the leg openings so I have to bind off some stitches.

I am supposed to do seed stitch for 10 sts then join a second ball of yarn and with that ball bind off the next 8 sts. What I’m unsure of is do I use the previous stitch before the bind off (the 10th stitch) in the bind off as the stitch I slip over? Or will I be slipping over the second stitch in this set of 8 stitches?

So…
Seed Stitch 1-10 K1, slip 10th stitch over

OR

Seed Stitch 1-10 K1, P1 slip knit stitch over

2

The second choice.
Seed st the 10sts, then start the bind off with 2more sts (stitches 11 and 12). Slip stitch 11 over stitch 12.

3

Thank you so much! You’ve been very helpful with all of my beginner questions, I swear I’ll figure out what I’m doing eventually.