No top combat rogues do not use evis exclusively, hell the first kill of Heroic LK 25 man had two rogues as rupture-combat. EJ has extensive posts about this very thing, I'm not going to try and explain it all to you myself when the info is all there and they have already proven Rupture is a dps increase to use in almost all situations unless something is going to die before it ticks out.
The SS glyph is good for the evis spec, but not that great for the Rupture spec. Go to a rogue spreadsheet right now and enable 4 piece tier 8 and I guarantee you on 99% of rogues the evis cycle will switch to a low rupture cycle even in an evis spec.
Go to WoL right now and all those combat rogues you see will have some of their damage from rupture.
The ironic part about everyone thinking that Evis spec is the best spec now is that it took forever to convince everyone that evis spec was the best until they enabled critting ruptures at all times.
I'm not talking out of some kind of speculation or gut feeling either I know this to be a fact about rogues and the combat specs, and as you can see from my armory I'm not some random ass rogue with no knowledge of the game trying to tell you about it.
http://www.wowarmory.com/character-s...h&cn=Sabrelime