Hey, I have savvy and Core 4x4 control arms Savvy is double adjustable and its awesome when it comes to adjusting the control arm. I guess other qualities that aftermarket control arms offer over stock Jeep control arms are strength and , well thats where I get stuck. I just dont know the other qualities they offer. Do they have more flex than stock? Do they somehow pivot or flex or add stability without comprimising safety on a trail? just wondering if someone could help me with this . thanks