IMO… the “slingshot method” I keep seeing on YT is not what I’ve seen personally… maybe it’s called something else? If I showed you overhand racking that only used the pinky and thumb and said overhand racking doesn’t give you a good grip, someone would say that I’m doing it wrong, correct?
Maybe it’s called something else, but it’s basically the overhand technique PLUS thumb, but on the other side of the frame… giving more grip than overhand while still relying on gross motor skills rather than fine motor skills (I’ve been working on using the overhand technique though).
The “slingshot technique” I’ve seen and previously used is the same palm and fingers grip as the overhand, except the palm is on the ejection side of the slide with thumb running under the ejection port. The grip on the frame is the same except it adds the thumb for extra grip. I’m not saying it’s better than the overhand technique, but I don’t see any YT’ers illustrate it when they are making the racking technique arguments.