It's going to happen. the 155 weight class DL is 445 w/ a belt. I pulled 355x2 for my last set today w/o a belt. (did 305x5, 315x3, 325x2, 335x2, 345x2, and finally 355x2) I think I can definitely pull it off. oh and everyone tends to use this for the DL, i use the straight bar.