Ribby Cardi

So, I think I've decided to make a Ribby Cardi in these two colors. Because of color availability in the yarn I'm leaning towards, I moved away from my original pink and green thoughts to this more tonal pairing. But the combination has a retro feel that has really sunk into my brain and become unshakeable. (I'm not normally a retro person, but right now I'm loving the idea of these greens. A mom at school recently got a Timbuk2 bag in similar greens, and I loved it, too, the minute I saw it. But, I have to admit when I've played around with plotting my own Timbuk2 colors, I keep ending up with pinks/reds and or pinks/greens together. I'm in a rut, what can I say. I thought this pink obsession was just post-pregnancy hormones, but it may be here to stay.)

What I can't decide is if I want to make the sleeves in the light or the dark. Thoughts?

I like the light green "best," but I think the sweater might look best with a dark body and light sleeves.

For those of you that have already made (or ordered for) a Ribby Cardi, am I reading this correctly from the ChicKnits site:

"Sleeves & Trim: one third of total yardage + one ball in contrast color..."

So that's 1/3 of the total yardage PLUS an extra ball of the contrast color?

I ask because at Elann (which is not the yarn I'm using but is the yarn recommended), the yardage requirements say this:

"...with sleeves and trim using 1/3 of total yarn, when knitted in two colors."

The "extra" one ball isn't noted here.

By the way, I was thrilled to find a KnitPicks catalog in my mailbox last night. When I picked it up, I instantly knew it was different ... heavier. Yes! Inside there are samples of four of their new yarns. Cool!