Really good comments from everyone. Thanks.
Here are some of the things I've learned:
* Using While Label's Commercial 160 lube. It takes a bit more heat than their Carnuba Red. I finally managed to hit a 'sweet spot' - BUT - it doesn't last very long. Too many variables in my setup. The biggest variable is the Lyman heater. It just keeps on cranking until unplugged. Once I hit a 'sweet spot' it may work for 15 minutes or so, but then SOMETHING has to be changed - either the lube pressure or (more likely) fiddling with the heater (turning it on or off). The other variable is the amount of lube in the reservoir. Obviously, it is being depleted with each lubed bullet and as cbrick mentioned, there is a difference in viscosity at the top vs the bottom of the reservoir probably owing to a heat gradient.
* Some significant resolution to these variables are available with a different lube heater along with compressed air for the lube reservoir. The remaining variables should be a bit easier to manage once these are stabilized.
* On a sidenote, I learned something (the hard/messy way). At one point I decided to refill the reservoir with lube I melted. I studied the sizer for a brief moment to determine how much to put in the tube, but failed to notice there is a relief hole in the casting just above where the fill line would be. I filled to what I thought was correct and put the spring assembly back in the tube. Application of only a small amount of pressure made it abundantly clear my mistake. I had loaded too much lube and it was higher than the relief hole in the casting. Wet sticky lube spewed half way across the room from the relief hole as the spring applied pressure to the molten lube. It was impressive and disturbing at the same time. Some minutes later my trusty heat gun and rags had resolved the problem and I am now considerably wiser for the experience.
* Finally, I too ordered some different lubes from White Label. I want to see if one of them may be more forgiving in managing the variables necessary to find the Star's 'sweet spot.' I will say - once it is found, it is REALLY nice to be able to pump out a bunch of lubed/sized bullets.
IHTH