[quote][b]Posted by:[/b] Astrodynamic Does Sigma lose its effectiveness in higher ranks?[/quote]My impression is that since you're a higher rank, you've likely become reasonably consistent, and therefore decreased your Sigma. This would stabilize your rank, which, in theory, will give you the best, most competitive games. And I must say that in my experience, that's been the case. My games recently have been very competitive, and even though I don't come out on top all the time, pretty thoroughly enjoyable.