After about three years of not having the time to build a smoker, I've decided to build one. I had a nice plan with an old wood stove and was going to make it reverse flow. But I think I am going to scrap it and buy a pellet smoker. I like the fact that pellet can stay consistent with Temps unattended. So after looking around online I am leaning towards a Yoder YS640. I am s new smoker but have been in love with BBQ forever. I would love to start entering some competitions. So to my questions. 1. Would this be a good option? 2. What pellets is suggested for this smoker. I know that with traeger if you don't use their pellets it voids the warranty. Sorry if that is a dumb question. Thanks for the help.