[stum]

Either way works fine.. I run my e-revo w/ motor brakes and both my 8ights w/ mechanical. While the few added oz from the servo and linkage and pads does exist, you will extend the life of the motor by taking off braking duties... you don't get any more run time w/ either setup the .001 seconds is a mute point. If you plan on running w/ the stock losi 8ight chassis w/ a mount then use the motor brakes, if you get the tekno v3 kit go w/ the mechanical brakes.