Shoot, now that's a reasonable freakin' analysis.
"Bill Rawls, you are a reasonable fucking guy."
Neil: the most important grip factor is how it works within the greater biomechanical system to balance/counter the weight/geometry of the tool being wielded. Here's the slowplastic form thread grip epiphany video for anybody that hasn't seen it:
.
One educational exercise might be to grip a tool or disc and then try to move the balance around - e.g. feel that counterbalance in your fingers, then try to move it to your wrist, then try to move it to the elbow, and then the shoulder. Different parts of the arm-disc unit provide varying degrees/roles of counterbalance at different parts of the swing - it moves around. Check this high speed camera footage of a Jesper Lundmark throw. Note how the grip/balance dynamics are pretty static until force/energy starts transferring into the arm-disc-unit system. As force/energy hits and flows through the shoulder, upper arm, elbow, lower arm etc, we start to see the wing of the disc doing some crazy dance moves prior to final ejection.
From this dynamic balance within a greater biomechanical system perspective, we might say that a clear "DO NOT DO" would be to bury the disc into the palm because this cuts the tool weight off from the rest of the system we've sketched - i.e. the part of the disc we are throwing is always being counterbalanced by the hand/wrist, which prevents the tool weight from interacting/communicating with the elbow, shoulder, etc.
Obligatory cross-sport reference: NFL QBs talk about grip, emphasize wide variety of preferences:
Here's the article that goes along with the video:
Get a grip: How Mahomes, Brady, Lamar and 10 other QBs fling the football. Totally on brand quote from Big Ben lol: "I just grab it. I have no idea. I did an interview not long ago. Someone asked me, "How do you hold it? How many fingers are on the laces?" I said, "I have no idea." 'Cause I have to grab it to know."
More detail about Patrick Mahomes unusual grip, mentioned at the end of the above video, linked below (sorry dudes, it's TikTok). Most QBs don't "palm" the ball - they leave a little air pocket in there. But Mahomes likes it closer to his palm. Maybe the above mentioned clear "DO NOT DO" is a worthless maxim after all.