Not sure what you are exactly referring to as * finger feeder errors* there are no such errors except Feeder Finger Damage and roller lines damage on coins.
And as for ebay That is not always an accurated information source, as a long time seller on ebay myself I admit that unfortunately it has become a haven for misidentified/counterfeits and damaged coins being sold as ERRORS! such as the one below that is currently going for $100 ( a clear damaged/gouged and beat up peice of Junk!!
https://www.ebay.com/itm/LINCOLN-PE...AOSwGslecVMY

And as for ebay That is not always an accurated information source, as a long time seller on ebay myself I admit that unfortunately it has become a haven for misidentified/counterfeits and damaged coins being sold as ERRORS! such as the one below that is currently going for $100 ( a clear damaged/gouged and beat up peice of Junk!!
https://www.ebay.com/itm/LINCOLN-PE...AOSwGslecVMY

























