FourBoatTheory,
Thanks for the responses. Just about everyone I've spoken to regarding so-called sink craft issues identifies holes/openings in the splash well area and non-water tight hatch covers on the stern seats as key factors.
Right now, I'm planning on installing a 1,500 gpm primary pump and a 2,000 gpm back up. I know what I need to do to make the seat hatches tight, and I've replaced the existing 10" round deck plate in the face of the splashwell with a new, 10" x 20" Armstrong. I've filled in all of the old rigging holes and openings in the splashwell and I am planning on running new controls through T-H Marine's tube and flange assembly.
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I've never used the T-H rigging boot; is it water tight as is, or does it need some work/upgrading?
I was also thinking about running hydraulic steering tubes through the sides of the well using these fittings;
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Anyone used them and know if they are water tight and hold up well?