The advanced grid should be much safer to use: The bigger the selection, the wider the grid (drastically improves performance + fixes the client sided flickering of too many particles)
Finished the cuboid: It now has a bottom and a top as well!
Due to the grid size changes, I could increase the visable distance of particles from 45 to 100 blocks! (It's actually 99, but psssht)
Reduced calculations for both the advanced and normal grid
Added a nice little "early development" warning on startup