Utter nonsense. Coyne C#s have throats of well under 4mm, in general, and at least one Coyne C# has a throat that's considerably smaller.Royce wrote: In the other thread we all agreed that the so-called C# sets were really more like flatter versions of concert D,
I can't speak to the C#s which you personally have handled or heard up-close, but there is nothing wide about the C# bores based closely on Coyne.
Bill