I have both, and use the tumble lube for my .30 cal cast bullets, as well as for my .45acp bullets. I use the LAM II for the .45 colt, .44 mag and .480.
I saw one place where someone advocated Johnson's paste wax as a bullet lube. I took some, along with about 20 cast and sized g/c .30 cal bullets, set them in the warm Alabama sun to melt the wax, tumble lubed them, and loaded them in my 30/06. Worked great!