Hi William - Thanks for your honest feedback. The DB-100 tension block is designed to be a wear component, meaning it may need replacement over time to help protect the rest of the saw and keep things running smoothly. That said, it should still provide solid performance within its expected lifespan, so if yours wore out faster than expected, we’d definitely like to hear more about your experience. We’re glad to hear you’re still happy overall, and we’re always working to improve both durability and user experience. If you have any details you’d like to share, feel free to reach out to our support team—we’d be happy to help.