Hey guys. I need your help. I'm looking for a DX Racer chair. I need a new chair because the one I have (Some kitchen chair with wheels) is falling apart. I have it duct taped and Zip tied together. I'm thinking if I drop 500 dollars on a chair, it should last me a while. I just need help figuring out which series would fit my physical needs. I'm 6'6 roughly 300 lbs. I'm like an NFL linemen I'm on my computer when I'm not working, sleeping, or playing ball, So I'm in my chair for hours at a time. On the weekends I'll game sometimes up to 10 hours in one sitting, so comfortability is kind of a factor. Anyone know which series would fit me best?