Human Size!
I've seen people reach sizes that eventually crashed my server with the setPlayerXYZ add-on, I have not been able to reproduce how they did it, all I remember is there size reaching reallllly loving big
The max size for players is 5x. I do not know why, but this is only for players/bots. For things such as interiors, it can go to pretty much any size, even above 100x.
You can go up to X10 with console.
Also I'm pretty sure the max size is 10x.
Using FFC you can go up to a higher size than with the default setplayerscale.
You can go up to 10 10 10 with it.
findclientbyname("Person").player.setplayerscale("10 10 10");