I lost count of how many times I've pulled back these socks. This morning I sat down with one that was striping for five rows and one that was clearly knit in a tighter gauge and striping for only three rows, and kicked myself. I then realized that my 5-row-stripe pattern also was off by a stitch half way through the lace pattern.
I pulled the first one back to the ribbing. I pulled the second one back half way through the lace. I successfully re-knit them both today.. and they now match! My gauge is the same between the pair. They look lovely. I'm thrilled and hope that I'll keep it up for the rest of the sock.. because I don't want to rip them back again!!!