My test knit has been a hit - it is a DK pattern but I held a Happiness Slubby and Happiness Speckled in Fingering for DK gauge. I used 3.5 skeins of each and I made the XL/2XL w/ added length.
XS to M/L = 3 skeins of Happiness Slubby and 3 skeins of speckled happiness - pattern included
XL/2XL to 3XL = 4 Skeins of Happiness Slubby and 4 skeins of Happiness Speckled - pattern included
4XL = 5 Skeins of Happiness Slubby and 5 Skeins of Speckled Happiness - incudes pattern.