Yes I know that but as a player and FMB addict (I organized several campaigns for my squadron, 64th sentai) I rarely appreciated these generic skins. On the other hand, I often regretted that skinners did not skins for several aircraft of the same squadron !
But I don't care about, just some layers to remove, it's easy & certainly usefull. So I will do them now.
For a new campaign, you can take your time, I have not yet had time to play your last campaign^^ ++