
Not the best angle but that is the best I can do with one hand.
(added: I never have any neck pains as a result of playing my bass as the angle of this picture could imply. So with that said, as dumb as it my sound I wonder if this is actually how I uncontiously wear the bass.. lol)
As you can see I wear it quite high, actually it's the same height it is when I play play it on my lap. I wear it like this because I need the strap when playing it on my lap do to the
severe neck dive this bass has. I also like to hit a lot of the higher notes and it is simply a lot easier to do so at this height. So pretty much spot on to what jschwalls said. Although I still dont look cool.

This bass does need a new setup though or I should say a slight truss rod adjustment. The last person to set it up was Greg Curbow(

) when I purchased it in 04 it hasn't been touched since then. But it isn't the low end of the neck that I have any recent complaints about it is the high end(twords body), but that isn't were I'm feeling any discomfort/pain from.
HaVIC5 pretty much hit the nail on the head, but although the angle of the picture would imply otherwise I don't wear the bass so high that I dont get much of an angle from it. I'd guess it is somewhere 65' degrees depending on where I am at the neck. And again wearing it lower makes it difficult and again even painfull to accurately play on the higher end of the bass twords the body. But unless I drop it quite low I the low end of the bass is still far far enough away to make it somewhat uncomfortable to play on.
From taking the picture I noticed I dropped my left arm's elbow a few times almost touching the neck which creates a major twist in my wrist!. Perhaps I've developed a bad habit of this when I start getting tired. Something to keep an eye on for sure as I've never noticed it before.
Edit:I've been practicing sitting down since this post and since it is on the mind I've been paying attention to it more. I'm getting this tention even when playing in the middle of the neck and it it seems to be focused twords the pinky/wrist area. Like when doing fairly long stretches with the pinky as in the 1st three notes of a major scale on one string.