Aha......I just went to the user guide and their are 10 backlight levels but they are not in the menu but incorporated into the power button. Interesting.

In any event it would still be interesting to see how she stacks up power wise against some of the more common depth finders in use on the board.

Perhaps all is not lost as I am already invested. Even better is I have a built in excuse as to why I got my as@ kicked by my accomplice on my latest trip  ;D.