Right now I'm running 2 35T RC4WD cans on a AE5. I'm wondering if I should get a better ESC (HH BRXL) and better motors (HH CM), or upgrade to a Hobbyking X-Car 1900KV. Or possibly a Tekin ROC 412 and MMP setup. What are everyone's suggestions? I will be upgrading to all steel driveline before this.