There are as many types of massage tone as there are people. This is a bold statement, but it is true.
Muscle tone varies from the extremely tight to the extremely flaccid. Tight muscles can cause problems as it is often uncomfortable to have muscles which feel as if they are constantly under tension. Flaccid muscles can also be troublesome – if the muscle does not have much resistance it can be easy to strain. As with so many things, the middle way is often very desirable.
However, I have found in my York based massage therapy practice that nearly all muscle tones will respond favourably to massage. It just often takes more massage with muscles that are at either extreme.