The slug at the clew end on my main sail has now pulled out of the boom track on two occasions in winds above 15. After the first occasion, I hammered down the edge of the boom track, but under pressure last weekend the slug once again pulled out.

Has anyone else had this problem ?

I am thinking of having sulgs sewn on to the entire foot of the sali to ease the pressure, and/or lashing the sail to the boom with either a line or a velcro strap through the clew, but am concerned what effect that would have on my ability to control the outhaul tension.