Reverso Four Wear and Tear
Reverso Four wear and tear is normal. I have been using mine for years and it was used most heavily during an IFSC World Cup climbing event two or three years ago. Over the years I have grown in proficiency with the device and I trust it.
The beauty of the Reverso 4 and similar climbing devices lies in the simplicity of use. Pass the rope through, clip the carabiner through and attach it to the harness.