[1.0] Lyrics limits effectiveness of Staff Distance

I know there are posts related to this point, but I could not find one which addresses this specific aspect.

Setup: MuseScore 1.0 rev. 4140 (self-compiled under Win XP, Qt SDK 2010-02, Qt lib 4.6.2), but the same thing applies to released 1.0 too (it possibly also applies to trunk, but I have not run specific tests).

Steps:: Loads the attached sample scores.

All scores contains 10 voices with just one note and a lyric syllable each. The difference between them is only the "Style | Edit General Style... | Page | Staff Distance" parameter: namely 10.5sp, 10.4sp, 10.3sp, 0.0sp. All other parameters use default values.

Result: Down to 10.4sp the distance between staves decreases (the 10.4 example is slightly smaller than the 10.5 example). But, below 10.4sp, the staff distance does NOT decrease anymore: the 0.0sp example is tall exactly the same as the 10.4 example.

An image is also attached showing a direct comparison between the scores.

Expected result: it should be possible to reduce the actual staff distance to whatever value the user needs / thinks appropriate.

Very small values might make little sense in most occasions, but the user is ultimately responsible for the format/layout and the program should not "take over" and force a layout.

Notes:

1) Without any lyrics, the staff distance can be effectively reduced down to 0, having the staves touching each other. So, the issue is a consequence of the lyrics.

2) Taking into account the default values of 2sp for lyrics top and bottom margin, this means that the lyrics itself is taking up 6.4sp (10.4 - 2 - 2), i.e. the sole presence of the lyrics takes away, vertically, more than one time and a half of staff height (normal staff is 4sp high by definition).

This is way too much and much more than the actual height of the lyrics text.