What is characteristic of the Keller overhand technique?

The Keller overhand technique is characterized by the positioning of the support hand above the strong hand. This specific grip allows for better control and stability while handling the firearm, especially during the process of reloading or manipulating the slide. The higher position of the support hand serves to stabilize the weapon and improves overall handling, particularly in situations that may require quick and precise maneuvers with the firearm.

In contrast, the other techniques or grips mentioned may not provide the same level of control or effectiveness when using this specific overhand method. For instance, holding the grip at the base of the gun or maintaining a two-handed grip in a different configuration might not align with the essential principles of the Keller overhand technique. Additionally, positioning a light under the weapon would detract from aiming and managing recoil, which is not consistent with the advantages sought in the Keller technique.