Well..... You asked for it. The only major change I would make on mine, would be to have the drivetrain finalized before I finished the chassis. I never thought to measure the vertical distance from the motor mounts to the botom of the t case. I could have gained about 2-3" of belly clearence. First time builder mistake I guess. I have LOVED my atlas. I was originally (SP) going with the doubler as well, but after finding the right 203, and the right 205, changing the outputs, adapter, front dig shift rail mods, I decided that the atlas was the way to go. For only a few dollars more. Staks also look way cool and their 2 speed is or was a few hundred less than an atlas.