brooklyn1 wrote:

> Round pics are typically highly polished (some are lightly coated with a wax
> sealer), they'll often come out clean because the not quite fully baked
> center portion won't cling, giving a false reading. Flat pics typically
> have a rougher surface texture and a natural finish, making for more acurate
> doneness testers. Rarely important but flat pics also make smaller less
> noticeable holes.


Now that you mention it, I have noticed how smooth round picks are. I
never thought about it though as far as why or how it might give that
"false reading" but it makes perfect sense.
I never purchased flat picks deliberately but may reconsider next time I
buy some.