The things you do for identical socks . . .

I'm trying to make my Regia socks identical, but that may be a fruitless endeavor. As I was knitting the first one, I noticed that the stripes don't repeat in any regular way. I'm trying to match up stripes for the second one, partly by cobbling together the remnants of the first ball of yarn with the second. With the yarn bits I'm using, I will have two yarn joins and four extra ends to weave in after this sock is done. But I'm pretty sure that once I start knitting from the second ball, the stripes won't match, despite my best efforts.

Grrr. I thought the whole point of self-striping yarn was to be able to have identical socks!