If there’s no .raw script, the unnamed script is used as L0.
If you add a .raw script to OFS, that script will be used to animate L0 instead of the unnamed script (it has higher priority).
This could be convenient in situations where you need different versions of L0, for example, you can script for OSR2/SR6 on .raw where it will be visualised on the model alongside other axis, and script for the Handy / SSR1 on the unnamed script where you can use the 2D simulator for reference.
I actually don’t know what the .raw suffix is for. It just exists in OFS’s shortcut menu and I was just trying to to make some use of it.
It’s based on the distance between the bottom of the cylinder and the theoretically penis base. For more info see this topic: https://discuss.eroscripts.com/t/measuring-penis-length-in-ofss-simulator3d/151400
I’ve never used this feature after I’ve implemented it. It’s pretty much a meme response to someone’s yaps on the need for trigonometry during scripting.
If slipping out due to angled receiver is a concern one should consider using the “smart limiter” feature in MFP.