I had a Lyman and now have a Saeco, basicly both the same furnace except for the label and both many years old and neither have any leakage from the spout. I had a Lee many years ago and while it wasn't a major problem it did leak and I was never able to cure it though it did work reasonable well. I use a bottom pour when I can and a ladle when needed. If I had to choose only one of the two methods I would go with a ladel.