Do Vegas sportsbooks change lines/odds fast?

They follow Pinnacle&asian market closely? I mean, when odds change in Pinnacle, so odds change in Vegas isntantly too? Or they're interested in balancing their action? or Are they slow to change lines?

No, not as fast.  They are always interested in balancing out action, but are a lot slower to react to the public as the online sportsbooks do.  As a matter of fact last time I was there I was able to get lines sometimes up to a 1.5 points advantage ATS and 2.5 points on the total / and or significant advantage on the vig.  I always had pinnicle open on my iphone to track the line changes to see when the best time to buy my ticket was. 

Bling hit it, no set , for sure rule on how this will roll from game to game, keep both eyes open, have confidence , don't be afraid to fire away