I am the first scholar of the master who is before me. I do this thrust because of its cover. Also the Posta di Vera Croce and Posta di Croce Bastardo can do this thrust. I say that immediately the player delivers a thrust to the master or scholar that was in one of these guards, then the master or scholar should keep their body low and pass off the line, crossing their opponents sword and keeping the point directed at the face or chest, and the sword low as shown here.
The first scholar exchanges the thrust and immediately enters into narrow play. This is a natural consequence of following the cover of the Master of Sword in armour.
From either Posta Vera Crose or Posta di Crose Bastardo, step the front foot offline. If you move it to the right, you will dominate the centreline. If you slide to the left, you will change the angle of attack. Sweep your sword across your body from left to right, redirecting your opponents attack to the side. You do not need to move it very far. As soon as it clears your right arm, you are safe.
Step through with your left foot. Because both you and your opponent are using a half sword grip, you need to fight from the narrow play. When your left foot lands, the point of your sword should be nearly touching your opponent without needing to extend your arms at all.
Lock your right forearm onto your hip. Use your left hand to direc the point to a gap in your opponents armour. Push forward with your right hip, driving the point in.
You will also see the exchange of thrusts in the following plays.