Maybe degrease the parts first? Could be a layer of oil on the parts that don't strip. Or maybe certain parts are powder coated?
Saw the pics but late to the party I think your first choice without the red would be the best unless you have red somewhere in your paint scheme for interior just my thoughts though.
Well the admiral said she prefers the correct year decals because they're the right ones for the motor but the other look nice too. :facepalm: :lol:
I have some time before I need them since I'm still sanding and after painting I'll have to wait for it to cure a while before putting on the decals.