I haven't drafted Zendikar yet, but I had a nice 7:0 run in my first Sealed. Here's the whole playlist if you're interested, but I speak Polish in these videos:
https://www.youtube.com/playlist?list=PLuU39o1U4WyXqSmtAZpYxCYS2oQfofu04

Unfortunately, my two next Sealed Events weren't that good and ultimately I lost some gems. :P