Illegal to use most places in Canada...Some people think it is unethical but isn't anything MAN-MADE and high tech un-ethical to some degree.

Such as...

Fiber Optic multiple sight pins

range finders

binoculars

quads(which I HATE and think should be BANNED outright)

radios

the list can go on and on all day long


Basically unless your dropped off in the woods buck naked and make your own bow and arrows you are using something man made to get an advantage on the animal...