I have both the production pot IV and the pro 4-20, The production pot IV was bought in 1977 and has seen use 50 - 60 days every year since. Yes it drips when I get a little sloppy with cleaning metal and not cleaning the pot. I solved the dripping by drilling a 5/8 hole thru the base below the spot and made a wooden frame to act as a riser I slide a small baking pan under the stand to catch the drips.
The Pro 4-20 dripped as well but I corrected this by adding extra weight to the counter weight, I use the pro 4-20 for melting tin and other lead free alloys and after adding weight have not had an issue. For the money, they are hard to beat.
When I cast bullets with the pro IV, I rarely have an issue with drips, probably because bullets require more lead and longer pours, thus nozzle stays clean longer.
Just pay attention to what you are doing, wear appropriate clothing, keep work area clean and well organized and make some shields for around your pot to contain any spatter (A good idea no matter what pot you have).
Good luck and hope you save money for what really matters........ using your jigs.........