I was hoping you would tell your story here. I was really curious to know what happened that day. Was your bilge pump working? It almost sounds like you had unknown water in the hull when you got hit by the big wave. It was a very bad day out there, that's for sure, but for a boat to completely sink to the bottom isn't right. I hope you sue their butts off, and put that company out of business. Its not the first Tracker boat I've heard of that has sunk like a stone, and probably not the last either.
I'm pretty sure its the Canadian Coast Guard who tests all boats for level floatation, so I would probably start there. If they don't know, go to the US coast guard and ask some quistions.
S.