I was installing smart tabs the other week and I came across something of concern. I drilled the five holes along the port side of my boat with no problem. On the starboard side I stared with the innermost hole and worked my way out. The very last hole I drilled and when I pulled the bit out I saw water pool up in the hole and very slowly drip. I was only drilling in the length needed for the screw (1/2" or so). Do I have reason to be concerned? It is a 1986 Chris Craft Cavilier cuddy. It is a nice boat, but is not worth sinking a bunch of money into for repairs. Thanks in advance.