> * Original ballot gets lost (destroyed?)

Do you have a source for that? Michigan's response in the Antrim County dispute (which I think you're referring to by "60% adjudication rate") seems to say the original hand marked ballots are retained:

>Because voting tabulators in Michigan use hand marked, paper ballots, any alleged errors in tabulators can be caught during a hand recount, which any candidate could have requested in Antrim County.

https://www.michigan.gov/documents/ag/SOS_Benson_Response_An...