Mardy Fish was using a 6.1 95 the last time I saw him play in Newport. I've also seen several doubles killers use different generations of those frames over the years, but not quite so much lately.
Pretty sure that Max Mirnyi, Jonas Bjorkman, and Wes Moodie have all been S&V demons with those racquets. Stan Wawrinka used them before his recent switch to Head. Pretty sure Robert Kendrick swings them, too.