Cougar Mag: I bought one this year and love it!!! It weight hardly nothing---you don't even know it's around your neck!!! And just by biteing down you can change into all your different calls----I use it the very most. For deeper grunts I always carry my older larger grunt tube and it seems to be able to draw deer from a longer distance cause I can produce a much louder sound with it. You just have to get used to sucking in instead of blowing out!!!!