some database have single letter fields (e.g. a code
for language, etc).. A single letter field consumes 7-8
pixels, and the current minimum of 10 wastes quite a
bit of space here.
Consequently, I suggest that the minimum be changed to
a smaller number.
This change may also necessitate a re-think of the
decision to append "..." to truncated fields (which
should be set-able in the preferences IMHO).