Ok, so @roa and I had a heated but friendly discussion and it seems we agree on a lot. Allow me to summarize simply:
This is wrong according to both of us:
I say this can be correct:
@roa says, only this is correct:
What is the tip scripting rule trying to accomplish?
That when the most sensitive parts around the rim and frenulum are stimulated in the video, the same happens with the toy. If it stays too low, the sensation is underwhelming.
Why is the first one wrong?
Because with real-world device limits and setup, the played script will reach only lower parts than what can be seen in the video. Especially around the frenulum. This results in an underwhelming sensation or frustration.
What is my argument for the second one being right?
Different users have different safety margins. The differences/contrast between actions on that part of the dick would not translate enough. I want scripters to have the creative freedom to set the reference point to fit their style and type of script and create some contrast between actions.
What is @roa’s argument why only the third one is correct?
Scripting it this way makes sure the sleeve stimulates the rim/frenulum for everybody because a bigger safety margin is unlikely ( → More fun for everyone). For players with smaller safety margins, the rim is also stimulated and the overshoot is less tragic, because above the rim, innervation doesn’t change much.
I hope I have characterized the arguments fairly. If not, I invite @roa to correct me.
And welcome all of y’all to add to the discussion. Imho the main point we agree on, is essential for better scripting in the future.