I buy Joann"s Kaufman Kona solids by the bolt, and have never had a problem.
Please check out this previous thread about this subject on this board:
http://www.quiltingboard.com/main-f1...cs-t33854.html
Kaufman, themselves, responded in reply #32.
This was enough for me, to believe there is no difference between Joann's and the LQS Kona solids.
Thanks.