We've got a big (4foot long, 3 inch thick) bit of slate that we want to place on the dividing counter between our kitchen and dining room.
The counter is solid and will take the weight but I'd like to make sure that the slate won't move.
Also the underside of the slate isn't flat so I need to make it level and not rock.
Some folk I speak to talk of mortar/cement, some of something like no more nails and some want me to drill in and attach some sort of bracket to keep it safe and stop wobbling.
What would you, yes YOU, do? And why?
Thanks!

