Guitars Upgrade Tremmory S

This product was purchased for simultaneous operation with the evh d-tune, as a compensator. Before installing the Tremmory, the tremolo worked perfectly (schecter sls fr-s guitar). And after that, the strings did not return to their original position. Initially, I wanted to return it, but since I am far from Germany and the return would take a long time, I decided to bother and try to refine this product. During disassembly, I found a poorly machined pin, which shows traces of tool processing. Having carefully processed it on the machine and lubricated all the moving elements with graphite grease, it began to work quite tolerably. No matter how well it worked after completion, I cannot recommend this product for this price