Has anyone seen this before?! It’s so cool!! 
Enjoy! LOL
It’s the only way I do socks.
Otherwise I’d just make a sock and then make something else.
Seriously? 
Wow! If I ever need help with double knitting I know who to go to! :lol:
I am making a single sock but it’s single strand double knitting of a tube on straight needles just to do it and see how decreasing would be.
If I was going to actually make some like that I’d have to do them 2 at once.
It’s really not bad. You get a rhythm going even with the decreases.
Just keep the skeins separate and check to make sure you’ve kept them separate often.
Of Troy is a good one to go to. Also the double knitting group on Ravelry.
Dang. Hurts my head just thing about it.