Angle of dangle: holding the violin so it is more horizontal or vertical -- does it affect the sound output?

[Tommy]

Sorry for the sophomoric title but I could not resist...  I have noticed that if I hold the violin so it is more vertical (along the 'roll axis' so to speak), a lot of things are much easier than if it is horizontal like a table.  I do not have access to test environment to evaluate the sound output and would greatly appreciate any thoughts on whether this really makes any difference in how much volume reaches the listener, since there is less force of gravity between the hair and the strings.  I do not use a shoulder rest fyi.  Thank you!

[Pluto Vermin]

Tilting to the right can help compensate for a short 4th on the G string, for one thing. Don't let it take the place of getting your elbow underneath it though

 

2 hours ago, Tommy said:

 I do not have access to test environment to evaluate the sound output 

Being deaf will be a bigger problem than tilting your instrument...

[Dorisch]

Well, it will sound very different to the player in the first place. 
The violin itself will work just the same way assuming you bow it the same way,gravity has no significant influence on the violin itself in that regard. If it causes you to bow it differently, it will sound different of course. 
As you dont use a shoulder rest, the different dampening of the back will also cause a difference for sure. 
But really, that should not be trhe primary focus. 

[Pluto Vermin]

^Hearing yourself is the most important thing to cultivate.  Karaoke night is funny in large part because they can't hear themselves, not because they have bad taste in singing...

[Tommy]

I am primarily talking about pieces with a lot of off the string sections --

Paganini 24 1st variation
Intro and Rondo Capriccioso animato
Schon Rosmarin