Your comment reeks to high heaven of textbook engineer. The practices you advise do not survive in a world of bottom dollar commodity pipe fittings.
Everyone with dirty fingernails knows that 3-4 wraps is a pretty good rule of thumb for fittings that are meant to go together and you need more when you're mix and matching BSP and NPT threads because you have a larger leak path to take up.
Nobody bothers stocking multiple widths of tape. That only makes sense in a production environment where you're only ever working with one size and can build to it.
In a pinch you can "augment" things like compression fittings with tape on the OD of the ferrule.
Everyone with dirty fingernails knows that 3-4 wraps is a pretty good rule of thumb for fittings that are meant to go together and you need more when you're mix and matching BSP and NPT threads because you have a larger leak path to take up.
Nobody bothers stocking multiple widths of tape. That only makes sense in a production environment where you're only ever working with one size and can build to it.
In a pinch you can "augment" things like compression fittings with tape on the OD of the ferrule.