Software control or gearing

[clandry94]

My team is going to be using a linear shooter with two wheels and is still deciding on whether we want to run the front wheel faster than the back wheel. Anyway, if we want to run one slower is it possible to put a limit on a Victor motor controller to have a max amount of output as to make the rear wheel run slower than the front instead of running max power, but having the rear wheel geared down. Are there any pros or cons to this?