Mark Crossfield Q&A, Do Iron Grooves Wear Out?

Tim Calloway asks us and Mark if Grooves wear out and if they need replacing or sharpening from time to time?

Grooves do wear out and the rough finished on the face also wears down. Mark discusses the science of the grooves and how it impacts on your game. He isn't sure or keen about the idea of sharpening your grooves but putting them on ebay and selling them and buying the new version.