I have thirteen Lee molds,all I've had to do to several of mine is sand the top of the mold block with some 500 grit paper and light oil,knock a few burrs off the sprue plate or use my chamfering tool to lightly deburr the bottomof the pour hole.
I wash my molds and degrease them with mineral spirits before use and heat them on a hot play before the first cast. I lube the sprue plate and pins with synthetic 2 cycle motor oil a little goes a long way.
I smoked a couple of my first Lee mold but soon found out it wasn't necessary anymore. And as snuffy said the more you use them the better they work
Last edited by res45; November 24, 2012 at 06:12 PM.