griffinga Posted January 1, 2013 Share Posted January 1, 2013 Relatively new to the concertina 'scene' and this question has certainly been asked before - but I can't find an answer. Is there a reason why the button ends are convex and not concave. Seems like concave button ends would 'grip' your finger a bit and and prevent it from slipping (maybe I've just answered my own question?). Quote Link to comment Share on other sites More sharing options...
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