There is one more good reason to melt lube and pour into your sizer. If you purchase solid sticks you get a fair amount more lube for the same penny, and a penny saved is a penny earned.
A very important advantage of using the warmer on a coffee maker is that they heat almost to but never over the boiling point of water. Figgure 200 deg, which won't make the lube smoke or burst into flame if you forget it for a while. So set it on the warmer a while before you think you'll need it and when the luber quits, pour in new lube.
Now a second reason for not overheating the lube. You don't have to wait to go back to lubing. The sizer will chill it before you can get the pressure piston all the way home. You might have to crank it down with a bit less force, but you don't have to wait to go back to sizing.
Different story if you get the lube up to 300 400 degrees, which is easy in microwave, grill, range or whatever.
By Veral at LBT