Heat will soften epoxy so that you can remove an item. I have repaired golf clubs for years and the accepted method for the strongest epoxies is HEAT. For both steel and fiberglass shafts. Temperature variables are critical. Two much heat and the epoxy and shaft come apart. However, in some support of Capt Jim, golf clubs are not balsa airplanes. It takes quite a bit of heat to break the epxoy bond on golf clubs so there is a good chance that you may ruin the wood if not careful. HOWEVER, if you can control the airflow to a specific spot, heat will soften epoxy. The best way to do it is to bring the temperature up slowly to epoxy breakdown point which is around 250-300 degrees depending on the epoxy.