The reason there was more than one protector sheet on one side is a couple of batches that were done on the laser system before the equipment got upgraded had to have it installed before they got cut otherwise the side that got hit with the laser caught on fire on the original covering.
So the original covering got taken off and the new protective covering went on then they got cut.
When someone orders more than one lens, I cover the two lenses with one piece of covering so they don't move during transit. Since those few batches already had one side done anyone ordering more than one lens ends up getting two coverings on one side.

I guess you could say I'm big on protection.

Maybe I should write on the coverings that they need to be removed. Anyone concur?