Changed the radius of a bot to be reflective of the volume of a sphere of its body if each body point is 905 cubic twips.
Not a change for 1000 body bots (the normal) but a huge size change for small bots. The purple bot is normal sized.

Took a bit to get shot collisions to work right, but I found a cool system for doing it, and alls good. (well, shot collision between larger bots is freaking out still, not sure why).
Should make the advantage of being big (more powerful shots) be balanced by the difficulty in being hit when you're a pipsqueak.