Shape the angle of a broken hairpin's first part

[Urs Liska]

I have a broken hairpin whose first part is pretty short. As a 
consequence its internal angle looks too wide for my taste (see attached 
PNG). I would like to have the two lines wider apart with a narrower 
angle to more adequately reflect the overall length of the hairpin, 
similar to the second attached image from the corresponding music 
without line break.

I would only know about the "height" property of a hairpin, but that's 
not what I need, and it doesn't help me towards tweaking the first part 
only ...

I'd be glad about any suggestions or solution.

Thanks
Urs

encore.png
Description: PNG image

encore.png
Description: PNG image