Those are beautiful leg warmers and I like the effect. My suggestion: Decide you like them the way they are and they they will almost certainly go away with washing or blocking. LOL
Not that I think circular needeles are better, but have you tried them for knitting in the round? I'm just curious, mainly, to know if you find it more or less difficult to deal with those pesky looser stitches. I'm not good enough with dpns to be able to tell is it is easier or not for me.