IF it's long scale, it will balance just great . . . if you put it right behind the fifteenth fret ! !
Personally, it makes me uneasy to see that strap button right in the middle of the neckthru at the body joint, so for me, the upper horn will just have to do. You will learn how to 'wear' it and have it sit just so where it will play fine.
Mica's remarked that that shape was originally for medium / short scales where it balances just fine. Geometry and gravity scheme against it in long or 35/36 scales, which even Ron can not reverse (though I'm convinced he's actually perfecting warp drive and folding space, but what do I know . . . .)
J o e y