accidental spacing/placement issue

[Kieren Richard MacMillan]

[ Mac OS X 10.2.6;  Lilypond 2.0.1 ]


Hello, all:

I seem to be running into a situation where accidentals are not spacing 
quite right.

Here is the input:
r <fs c'! e!> <fs c' ef> | r <f! b e!> <f b ef>

And here is the (untweaked) output:

accidentals.pdf
Description: Adobe PDF document

My guess is that the use of ! to force the accidentals -- required 
because the right hand has "conflicting" accidentals -- is interfering 
with the standard placement somehow. Does that sound possible? As I 
remember engraving practice, any accidentals a seventh apart should be 
vertically aligned, right?

Is there something I'm doing wrong, or should be doing (i.e., other 
than using extra-offset, obviously) to make this come out correctly?

Thanks,
Kieren.