Copy that, I understand what you're saying and even agree with you.
This is not an argument, merely an opinion: it doesn't matter where the timing mark on the belts are but since they are already there, and the FSM clearly states to use them, why should anyone disregard them? Perhaps non oem belts don't show the lines, I dunno.
On the same token, I need to be explained why should anyone disregard the arrow on the cam sprocket if the FSM states not to? If the timing notches line up then the arrows should be pointing up.
Changing the belts so that the letters are upside down should still put the lines where they belong, because as stated previously, fixed number of teeth.
Don't anybody get mad, I'm merely curious why did Subaru go through the trouble of sticking arrows, lines and notches on the timing belt system (belt, sprocket, cover) if we are to disregard them!
Just playing devil's advocate! Happy Friday to all.