Went aground last week and gathered a lot of bottom stuff along side my centerboard causing it to stick in the centerboard slot in the shoal keel. I cleaned out the various materials and pryed the centerboard until it dropped. The line that raises the centerboard is no longer attached and I can't reach far enough up into the slot to feel the former end of the pull line. Note, I'm doing all this underwater. Any tips, pryor experiences, etc?