Now all the poop is starting to fly out of Pandora's Scientific Box of confusion ... I knew it would happen.
You just can't look at the ball position in relation to the final release of the arms, hands and club... you must look at the ENTIRE SYSTEM... and that means the body and footwork too.... because everything has an influence on impact.
If you think you've achieved a "new" release action based on an optimized kinematic and kinetic sequencing, you will be determining, by trial and error and error and error, where your new ball positions must be. Okay, and if you get improved results with your old ball positions, something may be wrong and you are not aware of what you are doing differently. That's the problem with a homemade golfswing... you just can't be 100% or even 50% certain if you are doing things as you intended. But if you're happy ....
Those that claim they implemented swing changes on their own and now have improved ball results are lucky or talking out of ignorance. The only certain way to create changes to your golfswing is with an objective instructor who can see the "before and after" results... and verify it with radar data. Otherwise your results are anecdotal.... even though you may think they are scientifically acquired.
Good scientific luck .....