So I've got my table close to ready to start dealing with the slate. I'm planning on using bees wax as suggested by Average Joe to seal the cracks between the slate pieces. but there are a couple of places where things are a bit more dicey. I'd like to do something fairly permanent with them before putting everything together and leveling. How best should I approach this? I'm guessing something like Bondo with careful sanding once cured? Is there a better way?