Rakly3 Glad to help and yeah I know how one thing can effect the other thing all to well as a tech lead of a dev team myself . The main reason I mentioned the bottom range maxing out is that it will effectively mean a larger average stroke range. In other words if you cannot max out the bottom You'll have to increase the range to get a similar sensation which might be difficult when the range is already large (I'm sure you are aware of this though).
As for the test movie: I get that you can't just use any script for training but you wouldn't train an AI model to generate Anime images without Anime in the training set either right? In other words scripters like Realcumber set a benchmark for what users want and come to expect. Now I think Realcumber is a level of quality we won't see in AI scripts for quite a long time but a script AI needs to at least understood some of the basics that make these scripts good and I think the stroke range (and thus overall intensity) is one of these essential things. Maybe Realcumber would be OK to provide a few parts of his scripts for a semi automated test that has a very varied amount of positions and intensities? This way you wouldn't even train your AI directly on the script, you would just have a tool to automate some of your quality control for the fundamentals of your script AI. This would also allow you to plot your progress for various versions on different key factors such as intensity for a varied amount of positions and intensities. I think this will take a lot of the guesswork out of the process. Just a thought though.