Not bad eh? (goodness I really do have flat feet) I've found this to be a very useful technique when you don't know how far the yarn will go. I can see that my left-over bits of sock yarn will benefit from this method in the future. But I think my first preference is for one sock at a time on dpns cuff down. Circs and bits of yarn going everywhere meant the whole knitting experience didn't feel quite so zen as it usually does - not so rhythmic and meditative.
My short row heels still need some fine-tuning.
I haven't worked out how to avoid the hole at the pivot point yet. Still, with these summer weight socks it doesn't matter so much - more ventilation!