New to the forum, tired of being jealous of my brother's Traeger. I've started looking around and trying to make a decision. I can get a new Ironwood 650 for $1199. There is a retailer selling a Timberline 850 for the same price, it doesn't have the updated D2 drive system. I've heard there have been issues with the Timberline, but I live in UT and use it year round. I've been told the added insulation in the Timberline is better for that. Traeger's marketing makes it sound like the new D2 system is a definite upgrade. Any thoughts out there?