They put on 4000 wrapper to help it get through customs, I noticed 4000 wrapper on my 10000 6s, check to see if you have two covers/wrapper on your battery
http://log.xaircraft.com/report.htm#2014_05_19_074708.500_27.1.06.18
How about this black box data?
I hit full pitch, this is on a 130 size octocopter just find it limits
This was without gimbal and camera.
The superX can fly very well in GPS mode but atti mode is better.
This is my flight log from a test flight 130 octocopter with dlsr gimbal and camera, practicing high speed runs for a job.
http://log.xaircraft.com/report.htm#2014_06_25_125025.750_33.1.10.33