sp_a2_turret_blocker

Portal 2 Single Player
1

Portal 2 Turret hop (SnapImaX)
Portal 2 - Revised chamber skip with turret (Kingpin)
Portal 2 - Phase 1 - sp_a2_turret_blocker - Route (DemonStrate)
Portal 2 - Phase 1 - sp_a2_turret_blocker - Route - Update 1 (DemonStrate)

2

A theory that could very well work: http://www.youtube.com/watch?v=lCM7aK67VJA#t=40s

After you’ve grabbed the cube you can get boosted by the turrets to the button.

3

My route:
http://www.youtube.com/watch?v=ce7pirKu0Gk

4

Portal 2 - Phase 1 - sp_a2_turret_blocker - Route - Update 1