As Stimpy stated, you need to clean your DIES!! REGARDLESS of the lube your using. make a habit of it, depending on how much you load.
Those having hydraulic dents and build up are simply using too much lube. Only a Lil dab will do ya!!! I have used it all others thru the years. The Imperial and Dillon remain my top go to lubes. ALL others are good, IMHO, Imperial is best. Even the lee lube, (You guys know how I feel about LEE) works well enough. Right now, I have cans of Hornady, RCBS and LYMAN on the bench as well as bottles of DILLON and tubes of LEE, RCBS and a tin of IMPERIAL in the front... Most of the time I just grab the DILLON as its easier, but ALWAYS when forming a case I'll use IMPERIAL.
CW