I always had this problem with guitars too, when standing no matter how high/low or the angle it feels wrong. I always end up picking the high strings lower to the bridge, but the low strings at the sweet spot right behind the neck.
It's that angle.. my sweeping angle doesn't go perpendicular to the strings unless I point the neck to the floor, but I'd need a 4ft. left arm and would look very dumb

Well who knows maybe I can start the trend of the anti-Fieldy stance
I don't know if I'm short or I have odd proportions or what.. I'm using a short scale, I think that might be the prob, as it seems to place the picking area further back then a fullsize.