@madlep I agree that we should handle the failure gracefully but I don't think this lib should be making the call on what to do with the failure. That should be up to our application code, and we could log to NR/Rollbar whatever then, without needing to modify this library. I imagine a custom flip error that we simply catch and handle in the Feature class, which is the entry point to flip. Makes sense to be a separate PR though.