Knitpicks stroll red and pink, with only every third pink stripe actually knitted across the bottom. For the rest, I knit across the top of the sock as usual, and then I turn the sock around and purl that pink back to the start. So for all of these socks the place I change colors is along the right side of the sock (as viewed when you have it on, and are looking down at your foot). So I start from the right side, and knit across the top of the sock until I come to the left side. Then I turn the sock around, and purl back across the top until I come back to the right side. That way I’ve done two rows of pink across the top of the sock, and not knitted anything along the bottom.
I really like this pattern, and at this point I’d figured out three different bottoms, so we got three different pairs from this pattern. The blue and white ones (Blue: Alpaca Sox, White: Dye For Me dancing toes) have the reinforced bottoms (and are super soft and comfy!). The rainbow pair (Knitpicks stroll and chroma) has the pattern going around the foot. You can see that the decreases after the heel take up most of the foot. They seem to fit just fine though.