SBmon
when you hit somthing with the front knuckle, (presuming your using a high torque style servo) the servo stays in place and the saver gives as its suppose to. However most of the time people set the saver too soft and the front end gets shocked to full right or left (sometimes beyond if the hit is hard enough) on an impact. this is what breaks the joint. It is not a twist shock problem it is a bind on overtravel problem. Tightening the saver tight will usually do no harm to a metal geared servo but it will prevent overtravel and save your axles. 99% of the time the axles break it is an impact at full steering lock or close to and the axles bind. No cv type axle will survive an impact in a bound up state no matter who makes them.