Here is what I found:[url=http://www.analystforum.com/forums/cfa-forums/cfa-level-ii-forum/91349701]http://www.analystforum.com/forums/cfa-forums/cfa-level-ii-forum/91349701[/url]

"It’s quite possible that the MPS is around 65-70%, but not one person can truthfully and authoritatively tell you (aside from (maybe) a CFAI person) what the MPS is/has been, so people ballpark it at 70%. Allegedly, the CFAI website, at one point, said no one has ever failed scoring below a 70%, but I never saw that myself, so maybe someone else can chime in on this.
Ethics supposedly was a tool to determine how to handle borderline candidates (according the the CFAI website at some point)."

Another source says 58~63%.
[url=http://www.300hours.com/articles/here-is-the-mps-estimate-for-cfa-level-ii-2012#.V1WA_OIrKCo]http://www.300hours.com/articles/here-is-the-mps-estimate-for-cfa-level-ii-2012#.V1WA_OIrKCo[/url]

I like this one much better since I only got exactly 2/3 in the mock.

pass if u have a hard score of 70%

but u will likely pass even if u get below 70% after all the adjustments

no
I never pass ethics [tuzki10]