CasSO quality aside....
http://www.redrc.net/2014/03/cso-sup...it/#more-78126
There's some interesting stuff there. Adjustable battery stop on the motor mount. Centerline mounting of the motor mount with the layshaft hanging off it. Single-sided layshaft.
And I'm really curious what the steering bridge to the top deck with split FR blocks feels like.
-Mike