Mass Effect 3: Regular vs. Premium Spectre Pack UPDATE 2 In Mass Effect | On September 13, 2012 Just to give everyone an update on my Ultra Rare status - at this point, I've spent over 9,000,000 credits on SP's an PSP's. My Ultra Rare drop rate for the SP has been 1.84% vs. the PSP at 2.17%. So, while the PSP does...