Cheers, Staggerin' Jim [Listen to Roots Harmonica at http://www.live365.com/stations/staggerinjim]
No, you can´t use harp reeds from one model in another harp model. Usually it´s not even a good idea to use (e.g.) a reed from a SP20 Key of G in a SP20 A, though it should work if you have no alternative (of course you have to remove a lot of material from the reed´s tip. Additional Hohner classic harps G-C# and D-F# are incompatible because the slot size is different.
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