I prefer to dip lube most of my boolits even though I have an RCBS LAM2, but it is sometimes messy with a push through sizer. Especially in the winter lube really makes a thick coat on cold boolits and gets squishied out around the sides of the boolit being sized and smeared onto the noses and bases as they are stacked in the sizer.
I use an old drip coffee maker lower heater with the reservoir broken off and a tuna can to melt the lube for dipping, and had collected another heater to use as a backup in case the old one failed, when a light went off in my head.
I stood boolits on the second unit and allowed them to heat up, then dipped them and wiped the base on a paper towel. This left a very light coat of lube and clean bases. The mess was almost totally gone. Tumble lube boolits can be dipped hot and larger grooved boolits work best only warm which allows more lube to solidify on the boolit. You can place about 50 on the heater plate and use them hot or just put 2 or 3 on and use the warmest as you replace it with a cold one for less heat.
Works for me.