Dirty Bomb: Jumping Over Terminal Wall ET Style

How to Perform:
You need to circle jump the first jump so you become almost parallel to the wall to gain maximum velocity. The second wall jump needs to be angled so you avoid collision with the sign.
Personally I'd like to see the basic window jump removed, and keep this one and the advanced window jump (from the MG).
This is probably the most difficult jump in the entire game with 410 MS mercs to perform without using exploits.
I have not tested this jump with Fragger or other lower MS classes, but I doubt it is possible.

[@artmanrom]

If you are succeeding doing this during a real match, can you plant the C4 bomb on the other side, or the action key option it's appearing only on the other side? Also can you make a video about the exact location of the "forward spawn"? Thank, Dear Nader lover.