Bind-off analysis paralysis

I've almost finished the back of a sweater from Vogue Knitting, S/S 2007, model 3, "cabeled tank." But I'm stuck on binding off to shape the armsyces. I ripped back the first attempt, threaded a "lifeline" through the live stitches and started again. I don't like how it looks. The pattern requires binding off at the beginning of one row, then the beginning of the next, etc. Unfortunately this means binding off in knit stitch, then purl, etc. and I think it looks sloppy. So I'm now in search of a better way, a more polished appearance to the bound-off stitches. Which, I think will necessitate more ripping. *sigh*