I use Imperial on the big rifle magnum cases, and for case forming.
Dillon spray on .30-06 and smaller and all handgun.
BTW, I've tried ALL of the spray lubes I could find and Dillon is the only one I use.
And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth.