I figured I would post to see if anyone had any insight on how the new Aisins are handling tuning? I am about to pull the trigger on a new 3500 DRW Aisin. I definitely want to tune it at some point in time, it is going to be a flat out tow rig. After experiencing a Ray tuned 68RFE on my '12, I am really debating the Aisin all together since I have future plans to tune my new rig. Anybody towing on a raceme/warp truck with the Aisin? Any comments would be greatly appreciated!