All I do to thin it out for my bullets is put the bottle in a glass of hot water for a few minutes. I use way less that way without having to worry about cutting it. It works just fine for me. Oh and I do not use wax paper. I use a paper plate. It works for me well enough I am not gonna fool with channging things up.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.