OCTO wrote:When I commented the angle of horizontal lines in

, I meant the following: in combination with ledgered noteheads, the bottom horizontal line of

seems to be to high, therefore I have an optical illusion that the accidental is placed to high.
However, I don't get the same impression for your

symbol.
Thanks, OCTO!
Sadly, this is an inherent illusion in most accidental shapes, even less angled ones, so reducing the angle will not get rid of this.
In the original manuscript, this particular sharp is placed off centre to compensate for this effect. The Durand screenshot in your opening post clearly shows the illusion to (more or less) the same degree as with my own font, but since the note and accidental isn't located outside the staff, the effect isn't as apparent.
Here's the same passage with the less angled sharp in the Maestro font:

- Skjermbilde 2016-01-14 kl. 16.06.55.png (109.28 KiB) Viewed 12416 times
My point to having this particular relatively steep angle for both sharps and naturals, is that it's the same angle used for the black and half noteheads. This way, the accidental becomes harmonious with the noteheads, which is easier on the eyes.
You could of course argue that the angle is too steep overall, but personally I don't think so.