I have seen a lot of posts about mech vs motor braking and I am not here to debate one being better than the other, but I was able to capture some Eagle Tree info that was kind of interesting. May be some of you who are more technically inclined can comment. Anyways I have two brushless 1/8 scale buggies, an SH Z-Car with mech brakes front and rear, and a Losi 8ight with motor brakes and a Smart diff (center). I bascially made two runs, one at about 3/4 throttle then brake, and then another at full throttle then brake. As you can see in the graphs the first one (Losi) shows the pack voltage dropping when accelerating, then when the brakes come on there is a slight amount of positive voltage, something BrianG has mention (regenerative braking). Then the second graph shows the mech braked buggy, and there is no positive spike (no motor braking = no regenerative effect), it's pretty flat. Yeah I know, too much time on my hands.