Motor/Mechanical Brakes?

[Shark413]

Ok so here we go, first let me state I do not advocate one system over another, and in fact I use both motor brake only, mechanical brake only and a hybrid system that uses both on my 1/8 scale buggies/truggy. I am not here to start a debate on what's better, I just want to point out something I noticed that I believe explains some of the difference in "feel" between mechanical and motor only braking. With mechanical braking there are calipers/disc that stop the front and rear driveshaft’s, basically providing even braking power to the front and rear regardless of the amount of grip/traction each tire has. Now here is something I noticed with my motor brake only setup, this system works by the motor (pinion) stopping the spur, the spur being connected to the center diff then stops the front/rear driveshafts. But, the braking power is not even, but dependant on the center diff action and available tire traction. Do this test, take your motor only brake buggy and place your finger on the spur to simulate braking, now place the buggy on the ground and while holding the spur push the buggy forward, it doesn't move right? All the wheels are braking, right? Now, while still holding the spur, pick the rear tires up off the ground and push the front wheels forward, what happens? The tires will now rotate, because of the diff action of the center diff. The rear wheels will also rotate, so now the braking power has changed (diminished) because of the diff action and rear traction changes. This unloading of the rear happens almost everytime the brakes are applied (weight transfer), which will make the rear end lighter and could potentially cause the rear to lose traction momentarily and in turn impact the front braking power. To be honest, both braking methods seem to work perfectly well to me. With motor brake, you also have a lighter system, with less moving parts and it's cheaper as well. The only advantage I see with mechanical brakes is bias and the fact there is consistent braking power and it is not affected by diff action. Does this make sense? Am I missing something?