Hi Dmacg
Thanks for sharing again. Wow info straight from John Grado. Very cool. I don't think I would have the gumption to ask him why there should be a 4-6 hour rest between break-in either.
Thanks for sharing again. Wow info straight from John Grado. Very cool. I don't think I would have the gumption to ask him why there should be a 4-6 hour rest between break-in either.