some may argue that the saddle config has a lower CG, but having half the batt weight on the motor side just doesn't add up imo. I agree with tekno on their theory on that. Besides, I think ROAR should change the rules to allow shorty packs across the board so we can start to see different designs in on/off road. The current designs have hit an epitome imo. If the D413 really uses shortys, I give them credit for paving the way.