The RCBS Pro-Melt is awesome. I sold my Lee 20 drip-o-matic here on swapping & selling...with a disclaimer of course. A tiny bit of lube on the base of the boolit is of no concern. If it bothers you just wipe it off with a rag or paper towel. Some boolits will require much more lube than others, depending on the size of the lube groove. I usually give it a slight nudge after lubing each boolit. As mentioned, you will want to get a few extra o-rings for it. You can find them at the hardware store, or RCBS will send you some.