It took a while, but I think I've finally found a mitten pattern that works for the koigu. The pattern is Vanilla Fingerless Mittens by my friend Elinor. I like the way this is knitting up but I'm thinking that the stripes could have been a bit smaller... I did 10 rows of each colour and I probably could have done fewer... maybe 6 or 8. But all in all I like them and I'm not frogging a fourth time.
In any case, I've decided they're not for me. I think I'm going to give to them to a friend for her birthday later this month.