I kinda thought maybe it was some pecan wood. Thats all I usually use but have run out. Got a dang good deal an a cord of hickory wood but dont like it as much. The last few times Ive used it I didnt have the smoke ring I normally have. Didnt know if it was the rub or the wood I was using, now I know its the wood. Kicking my self in the tail for not sticking to pecan.