Don't know if you have glass or aluminum. I think it was Jerry Blake or Darryl Morris that has a puck TD mounted inside the front of his boat and it's tilted slightly forward. No broken TD's this way and, if I remember correctly, he said that he liked the slightly forward vision and that it wasn't a big deal to get used to. I've kicked around the idea, and have the TD, but so far that's as close as I've gone. Just some input. Also, I remember something about a slight loss in signal shooting thru the glass hull but nothing that a slight increase in sensitivity couldn't fix.
Creativity is just intelligence fooling around