Or, you could just find a cow and watch her. Her body language will tip you off to any other moose within several hundred yards. Might even have a bull come nosing over, especially her last year's calf.
I've killed several bulls this way.
Saves a lot of cash and lugging.....
Good luck, you guys. All I've gotten so far this year for my moose hunting efforts is a badly crippled outboard. Fortunately, I could row home.... But i have until March to ruin the 4-wheeler and/or snowmachine....