Michael,

The stuff Charlie Collins sells are scapular feathers, not true spades. The quality is outstanding for tailing - long and stiff fibers. I know I can get down to a #10 dry fly and at least some of the feathers could tail a #8 Mustad 94840. PM me your snail mail addy and I'll be happy to send you some; you can decide if it's what you're looking for.

Regards,
Scott