Above you see the dreaded gappy corner, nooooo! argh!! poo!!
One of my biggest trouble areas was since I am using brads to finish them, I was popping my joins apart doing the tapping. I have now let the glue set up a good long while before I go hammering, and use a be-headed brad as the drill for a pilot hole so its nice and snug. I hope now my putty will dry up before I can use it all!