With all due respect to vintage cyclist, absolutely don't do this! I did this many years ago and the aluminum holders snapped off. After buying Superbe pads from Koolstop a year ago I simply pried out the pads with a screwdriver and then pressed them back in with a woodworking clamp. Easy peasy! No bending of metal necessary. I do note that you said Superbe Pro pads, which (at least for the later generation) are rounded at the end. However the photo posted suggests that we are talking regular Superbe pads, or first generation Superbe Pro.