The ability to keep the wires tight relies upon having equal distances from the pivot of the servo to the control attachment point, and from the hinge line out to the attachment points on the control horn.
It doesn't matter if the lines cross or run parallel.

Lastly, do NOT use a horn on the control arm that moves the attachment point forward of the hinge line. Often, you'll see where someone wanted the precision of a pull-pull setup and then threw it all out the window by using the wrong hardware creating a mis-geometry at the control surface horn.
The actual attachment point must be in line with the hinge line.