I just tuned a brand new Kawai UST-8, right out of the box, on the showroom floor. Both pins for A2 were very "jumpy." My immediate reaction was that the pinblock might be cracked, but could something else cause this? Also, why do grands bear the name "K. KAWAI" while uprights just have "KAWAI" without the initial K? Is it just marketing, like maybe the initial is supposed to make it look fancier? Thanks, Paul Mulik
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