Thank you for your review and letting us know about the cable wear issue.
Having to use excess pressure to push the our pedals and/or cables breaking prematurely are indications that the alignment between the Pulleymount and Quickconnect is not optimal. This is especially true if the steel cable is failing near the white plastic pulley which is attached to the vehicles brake pedal.
Please send us pictures of the installation. You can text them directly to our support number (708) 683-7618. Send us several pictues from several angles. Or, double check the alignment with the pictures on Page 3 of the installation manual.
We're always here to help!