Bamboozle:

Thanks for buying the DVD! And it ain't dark and spooky!! Ha!

I tell people all the time, the duck quills were traditionally used for tying most of the wet flies, especially in smaller sizes; smaller being #8, #10, #12, etc.
Goose can also be used for classic wets. I have even married duck and goose together just because it was what I had on hand to tie what I needed to tie at the time.

I have some Wapsi Goose Quills I bought that I suspect are not goose but rather large white domestic duck.

Some duck quills are not large enough to tie quill wings much larger than #8. I do indeed have some duck quills that won't tie #6's which is what I usually tie at shows, and in classes I teach.
Save the smaller sized feathers for tying #10's, #12's, etc.
If you are having trouble finding nice duck and goose quills, please feel free to e-mail me, I may be able to help.
I think my e-mail is in my profile, if not call me at the phone number listed on the DVD.

DB