I broke a shaft in a Nickent Genex 3DX ironwood hybrid 22°. The shaft broke just abofe the ferrel. I cut the shaft even with the top of the hozel and then drilled out the shaft. I expected the heat build up to eventually lossen the epoxy and then allow the shaft to come out, but this didn't happen. I thought I drilled the complete shaft out down to the plug, but it seems pretty shallow. I measure it at .531". Any advice?