There should obviously be an overhead attack with pikes, since the main attack for pikes was overhead. Pikewall vs. pikewall, blocking pikes was hard, overhead thrusts were favored because they were direct to the head, and many pikemen had open faced helmets or morions, some even cavaliers and berets. So, it was easier to stab your enemy in the head, then to try and stab through his thick armor, or hit his legs...