Good news!  This commentary duo has recently watched episodes 10 through 12, and except for the first two seconds of episode 10 they were 100% BLIND for those.  You can look forward to videos of those reactions later!

Full videos below.

Bohepans:
https://www.youtube.com/watch?v=GqO7XMyfm8U

Eizen:
http://www.dailymotion.com/video/x1bd5dq_let-s-react-to-mlp-fim-s4-e6-power-ponies_fun