Imo the Wedge vs putter is an apples/oranges comparison. Putting is and should be generally pretty low impact- that is, the collision between ball and club is, well it's hardly even a collision. Contrasted against the strike that occurs on a full wedge swing... I've worn the faces of brand new vokeys down in a summer before. I was playing daily, but still, repeated impact takes a toll. Paint will chip scuff and look like hell after a few strikes - full swings are violent. I have a vokey that I did in polymer and a Callaway 3 iron. Neither finish lasted through impact with more than 4 balls. I'll find pics and post.
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