I have a 2009 Phantom 320 and am having great difficulty in deploying and retracting the dagger board. In a race, using the dagger board would be more trouble than it should. I will try silicone as suggested by Remi though I fear it will wash off at a critical time when I need it most.
I however feel that a better solution is for Starboard to consider retrofitting the Phantom with dagger board gasket made of a more slippery material. The present gasket is not quite as compatible with the dagger board material, as say, the slippery compatibility of my easy to use 2009 Rio's dagger board with its supplied gasket.