Never used. Excelent quality. I already have the Sector 111 unit installed. I bought this because, silly me, I thought that a product made by a guy named "Titanium Dave" would be made out of, well, you know...titanium! It's not. In fairness, he never said it was and I never asked. He said that racing orgs dont allow titanium harness brackets. Anyway it's stronger looking than the Sector unit but not worth the hassle of pulling the seat and switching them out. I paid $100. I'll take $75 plus I'll pay shipping (in US).