The hammers from Tinkers Construct shows a visual 3x3 grid when you point the hammer to a wall, making it easy to see what you're mining. Since the Terra Shatterer can mine way larger areas, it would be really nice to have a discrete visual grid just like the one that the TiC hammer has.

It would be nice if you could consider adding this to your mod, with a config option to disable/enable it ofcourse. :)