Touching Articulations

[Kamal]

If I use the following code snippet:
<b gis e>4_\fermata\mf

the fermata will appear touching the mf as per attachment 1.

Also if I use the following:
\set stringNumberOrientations = #'(down)
<g,\4>8

The number 4 will appear touching the stem of the note as per attachment 2.

How can the above 2 be overriden?

att1.png
Description: PNG image

att2.png
Description: PNG image