Well, I finally got out for this season's shakedown cruise which was great except I'm noticing a fair amount of hum from the daggerboard and/or rudder on the starboard side.

I'm not aware of needing to reshape the trailing edge of these foils like one would do on a Hobie to reduce hum, but maybe it's needed?
There's about 1/8" of play total between the tiller cross-bar and tillers. Could this be part of my problem?

Any ideas to remedy this would be appreciated.

Thanks.