I have a propane upright I use alot. I think sometimes I use to much smoke/chips for what I'm smoking. I use a large coffee can for my chips, usually about 1/4 full at a time. I will refill can 2 or 3 or 4 times during a smoke. Example I smoked ribs a couple of weeks ago and used a whole bag of chips. Am I smoking to long or not enough. Any thoughts will be of help to me THKS