Does the brake closest to Master Cylinder do slightly more braking?

[Jetronic]

OMGOsh...

This is as good as a static system...those pistons move hundredths of an inch, the fluid displaced is drops. There is nearly ZERO impact of fluid motion on the system in the realm of how fast you can push the brake pedal. Now, ABS might complicate things, but it is still VERY low flow, and now more like AC current than true fluid flow.

Yes I know all that.

It's minuscule if even there at all and if it's there the reverse is true when releasing: net result is no difference in heat production or work done