2012 Level II CFAI Mock - ethics

Anyone else find 2012 Ethics extremely difficult? Alot of them were close-calls for me. Got 50% in Ethics in AM and PM.

Any tips to get Ethics score up?

Exhaust all the ethics questions you have in your arsenal

I just took a couple of the ethics practice assessments available on the CFAI website. Some of them are brutal. Almost unfair really.