You decided to build your own. That means YOU take responsibility for your decisions. No reseller can sort all the differing geometries. I've supported scores of 42T customers. Your dilemma has been solved with a 42T in hundreds of cases. Send the ring back. Jeannette and Doug are very good at accepting returns. You're out shipping costs and they don't ding customers with high initial shipping costs.Well, they sold me the 42T Lekkie for $85 and told me it would solve my problem and it didn't.