Mixing quality yarn w/cheaper yarn..

[wholycow]

Hi all...I started this question somewhere,and it poofed on me,so if you find it pls. let me know.
I have 4skeins of a pretty blue yarn from Lion brand. I've been told that it's a 'cheapie',and that the Chenile will 'grow' twice what you make it once it's done. I really am not that brave to knit my heart out for two months,and have it be ugly...so I thought what I would do is combine it with a quality