New 28 ft, 1983 O'Day.....last rain storm the mast leaked into the cabin. The mast does have a mast boot which is tightened with 2 hose clamps. The boot looks like it is in good shape and does not have any noticable tears. The mast track seemed to have silicone in it to keep water from running down the track. I tightened the clamps. Any other low cost suggestions?