Mac users have relied on a pool of backup utlities for years, with three standouts being Apple’s own Time Machine, Retrospect, and Bombich Software’s Carbon Copy Cloner. All three fit slightly different niches, and serious techs and users have probably used all three at one point or another. A fourth entry is Econ Technologies’ ChronoSync, just updated to version 4.5, which purports to be a more universal tool for all of one’s backup needs….