Renegade Master......
Over the years I have used most of the common powder throwers - Lee, Lyman and RCBS.
I learnt to re-load by spending time with other experienced shooters when I first started handloading my own ammo, and I've never heard of anyone lubing their powder thrower?
I think that my experience with the Lyman has been that when using flake powders the rotary motion could drag very fine flakes in with use and it could begin to bind, I simply limited the use of the Lyman thrower to ball or cylindrical powders and NOT flake.
The key to good operation was the occasional strip down and clean.
hope this helps
If it has a trigger, I'm gonna enjoy it!