Well I belive/hope that Xur is RNG. The alternative is then that someone from bungie picks his inventory every week, and decides to put some of the same things week after week. It would be one thing if say Sunbreakers showed up a few times but with weeks in between before showing again but 3-4 weeks in a row? What would be the rationale for this? Now if we believe its RNG how can you explain getting items for weeks in a row? Why do the numbers for each item have to be the same? IE: sunbreakers has a higher chance of appearing then skull, therefore its appeared more. Would be nice for bungie just to tell us which it is.