Reclaimed, nothing is a waste of time. I try to answer every thread here, so members can gain knowledge. It's how we learn. No harm done.

I would check out these resources. It might help you.
For Doubled Dies:
www.doubleddie.com
www.coppercoins.com
www.varietyvista.com
www.crdievarieties.com
For errors:
www.error-ref.com
Errers and Varietys.