[Al Skierkiewicz]

Remember that wire has a specified resistance per unit length. In the case of #10 it is about .001 ohm per foot. Three inches would be about .00025 ohms. At 100 amps the above example would result in a .1 volt drop for 1 foot and a .025 volt drop for 3 inches or about 0.6% change. As far as heating goes in this example the 1' piece develops 10 watts while the 3" piece develops 2.5 watts.
As to replacing the wire, I have to refer to Team Update 7, "DO NOT attempt to unsolder the wires that are attached to the Skill-Bosch motors. The plastic housing that holds the brush assemblies will be damaged if you do. The high temperature of the soldering process causes the plastic to deform and destroys the motor. Teams should make their electrical power connections to the motors’ pre-attached wires, not directly to the brush holders." Hope everyone is keeping up with the updates!