I've only used my amnps a few times but i've noticed that i don't get any smoke ring. Is this normal? I know electric smokers are known for not making smoke rings but i thought the amnps would overcome this. I did use the water pan the first times so i'm not sure if that had anything to do with it. I can smell smoke but it looks very thin. Don't know if this is TBS or if the amnps is not burning correctly. Especially since it puts off a ton of smoke when i first get it going when it sits outside the smoker.I did add three 3/4 inch holes on the side at the bottom and three 3/4 inch holes at the top for venting. Ideas?