For rc drifting, a locked rear and one-way front diff is how I would recommend equipping your drift chassis. The front one-way (FOW for short) let's you make use of the braking as a handbrake. One thing it does negatively is take away front tire braking but that's usually a non issue with rc drifting. For a rear, don't use a one-way. Limited slip is alright for rear, but locked helps with keeping its handling predictable when switching directions.