I recently installed Doc's cable and cage bushings and its definitely a mod to do. I kinda had a hard time putting the cable bushings on either cuz I am an idiot or the gauge was too small but I eventually got it in. Its a noticeable feel and also it feels more beefy and sturdy compared to the rubber bushing. Even though I have a stock shifter, I still feel a difference. I will eventually order a gear switcher from him and ill update this review. Great products doc!