Leave the bugle tube at home, then you wont be tempted to use it. The last thing I would do is bugle at elk the first week of Sept., later you bet. Light calling with a hoochie or several other cow calls will get good results when used at the right time in the right way. Good luck. Just curious, are you a CO res. or an alien? I am a Utard but have spent alot of time chasing wapiti in CO.