HED C290/Jet Disc vs. Zipp 808/900 disc

Last year I raced on a HED C2 90 front and Jet Disc. I just got in my Zipp 808 front and 900 disc. I currently own both sets of wheels (will be selling the HEDs soon though). I have my first race of the year in New Orleans next weekend and be racing on my P2SL. Would you run the HEDs, Zipps, or would the differences be negligible?

-Rob