Repairing a worn mast

Hi all,

I've noticed that I there are few fairly deep and narrow grooves about 5 mm wide and 1 mm deep in my Fiberspar 100% carbon mast. I think these may have been caused by cambers not sitting correctly in the mast and the edge of the camber grinding against the mast.

Has anybody experience in repairing this kind of mast damage? I would like to fill the grooves to prevent them getting any deeper if same happens again. Also I think this may have created potential weak spot in the mast which may break some day.

I'm planning to fill the grooves with Hempel epoxy filler that I have also used also in board repair. Is this a good idea? Is there a danger of creating a hard spot in the mast that will break when the mast flexes?

Thanks,

Sami