In practice, colours tinted off clear bases are very average in their opacity. Many paint manufacturers have designed their systems around clear bases because it reduces their inventory and simplifies production. The cost is to the end user who has to either use a specific coloured primer or apply multiple coats to get the depth required. One of the key reasons why I use a particular manufacturer is because they still use a range of opaque bases for their colours.
Of course, colours that are translucent have their uses as well. You get different effects from different coloured primers. The is a public sculpture of a lightning strike here in Tasmania that required a specific clear based yellow over a specific grey to get the required impression of luminosity.
In answer to the original question, its an expensive and thankless way to try and get coverage that may not work out how you want. Cheers