hi mate anything is an aiming mark it would not matter if the v was upside down, to define an aiming mark is to look for a hold point that corrolates to the wind and mirage conditions.
I will aim at nail holes edges of the paper and other peoples target as a hold off point.
The only true area that must be correct is the circle fo scoring rings and the fly.
cheers les
shooting well is more a mental control of your thoughts than just pulling the trigger........