[nitrostarter]

How fast are you planning to go?

Most use mechanical brakes when using the 2-speed since its a clutch-type operation, theres no way to apply effective motor brakes.
However, if using a regular center diff or spool in the center, motor brakes work great.

Also, depending on your Radio choice, theres also the choice to mix in both motor and mechanical brakes. For example, on the Airtronics M11, you can plug a mech brake servo in the 4th channel spot and mix it in specifically for braking uses only, to assist the motor in braking duties.