I don't have any advice for you... but just out of curiosity, do you happen to have a hat pattern that is for circulars?? I don't have any DPN's, but I have a set of Denise needles and would love to make a hat on circulars...
On the Needles: Calla Tank (Magknits.com) and a baby blanket for my co-worker
Next on the Needles: My own design!!!
Check out my blog: http://seetrishknit.blogspot.com/
My geek code: KE++C+ Exp SPM+ Den++ Steel (+) Addi>+ Syn++ Nov Cot+ Wool> Lux> Hemp? Stash++ Scale++ Fin Ent? FI> Int> Tex> Lace? Felt? Flat Circ+ DPN> Swatch-- KIP SNB> EZ? FO7 WIP1 Guage B+ Cr+ Sw+++ Sp>