For elite performance like Skubal, details like 3rd vs 4th arb year are meaningless.
"shall not limit the ability of a Player or his representative, because of special accomplishment, to argue the equal relevance of salaries of Players without regard to service, and the arbitration panel shall give whatever weight to such argument as is deemed appropriate"
Skubal won 2 straight CYAs, and was very clearly being compared to the other highly paid elite SPs in the sport. It was laughable the Tigers thought $19M was even in the ballpark.