2S lipo/380 sized motors is definately a neat way to go for 1/12th. The only real problem I see is the lack of standards for 380 motors. We can easily define a new 'stock' 1/12th class as using a 1S lipo and 13.5 motor. ROAR has already defined what qualifies as a legal 13.5 motor. There aren't any, AFAIK, ROAR rules defining how a 380 motor has to perform for a certain class. So, how do you set up a 'stock' 1/12th class with 380 motors, unless you say everyone has to use the same motor. You'd have to outlaw Mamba motors, as they all look the same. And I'm not sure if Novak has different, unchangeable markings on their 380 motors.