Here is the facilities here at school and what I get to use.
I’ll keep this as short and simple as I can.
35-36 degrees is the ideal long tossing angle. So you can simulate long toss at any distance. The key is to gradually build up intent, like if you were outside.
Here is a the pdf that I made that lays out everything that I believe there is to know about this.
Let me know what you you all think!