This pattern is currently being tested and should be available in April 2015. (sorry about the delay)
You’ll need scales to weigh your yarn.
Double or single loop for the moment.
You’ll adjust as you go so that you can use up all your yarn - meaning you’ll be able to use up every last bit.
Listed as DK, but can be knitted in any weight you like - just be sure you have the required yardage/m.