
how have you got it adjusted, I find it best when at the straps longest, the camera is at hip level.
does the crossing of the screen happen when you have the strap "cinched" up or long, are you wearing the strap, diagonally left to right or right to left ?
I have it at full length, it's regular size. I have it diagonal from left shoulder to right hip, although it is still about halfway from under arm to hip.