I had a bit of time sans kids and husband, so I knocked out quite a few colors.  Same procedure as before, one small spoonful of dye powder to 4 cups of water and 1/4 cup of vinegar, 6 yard skeins, pulled every 5 minutes.  The russet, emerald, and turquoise were opaque at the start of the dyeing process.  None of them were exhausted at the end.