I know all about the head room, I have a 2000 42 Sonic now and I am fine with it. There is a huge diffeance form say my Sonic and a 43 Scarab. So I geuss what I should have said was over 5'5" of head room. I also am shooting for 100+ mph so that rules out the Searay or Sunseeker. I rather crawl in and out of the cabin before I would buy a Black Tunder, sorry I just don't like them.