hello, my first real hunt(besides rabbits) is coming up and need some advise on weather or not to buy a radio?? im goin to meriwa, ive never been to the place before but its a few tousand acres. im going with two other people and am thinking if we decied to split up we might need some radios. do you guys think there neccessary and if so do they work in hilly and bushy areas. what are your thoughts?? thanks.. ps if ido get some is the 5w overkill?