As the OP has probably already figured out that there are those around that don't care for Lee or any bottom pour pots. I've run a lot of lead through a Lee 4-20 bottom pour, I've never had an issue other than the occasional "single drip". I'm not sure why some folks have problems with bottom pours. One of the tricks that I use is to just keep a little tart pan (miniature pie tin) on the pot pedestal to catch any spills, drips etc.
The only time I've ever had a real issue is when I got carried away adjusting the spout when it was glazed over and ran the stem out too far. When the spout got up to temp and opened up things got interesting real fast since I'd actually run the stem right out of its threads trying to adjust it.