You're probably right, but I wouldn't get a Medic at all.
A medic is usefull in lowering veteran death rate. In a cv vet death used to occur 90+% of the time on plane losses.
Vet deaths no longer occur on plane losses, only when your ship gets hit is there a chance of vet death. This means any other sailor ( engineer/repairer/seaman etc) is much more usefull on a CV than a Medic.