Actually, I had never heard of the bulge Buster Kit until just a few days ago. I don't think I need it as the carbide sizing dies do the job just fine for the calibers I reload. If I load hot, I inspect the cases carefully and if they are bulged too much, I toss them. Most of my brass is collected at my range from shooters who do not reload and the brass is one time shot, so usually the brass is not bulged to any extreme.