"Marc CYBW" wrote in message
news:zkZ0f.1796$y_1.286@edtnps89...

Oops

The old are CF-xxx
The newer ones are C-Fxxx (The hyphen is between the C and F (or C and G
in some cases, as in C-GMTF)


Still doesn't look like a significant difference to me. Why bother with the
hyphen at all?