[Harp-L] Out of the Box.....Flat Hole 3 ?????

[Tony Renshaw <tonyrenshaw@xxxxxxxxxxxxxxx>]

I am using Special 20s and I notice the C harp, also a comparative Lee 
Oskar, on hole 3 draws 20 cents flat straight out of the box. Is there 
something with the tuning that means to draw naturally in tune on 
neighbouring holes is correct, but hole 3 is intentionally flat? I have 
listened to my teacher playing this note, and his too sounds the same as my 
harps, so I am thinking they are all flat when compared with my electronic 
chromatic tuner.
Reg
Tony R
Sydney