High Altitude Droning

pepsiwine thought this was worth mentioning said
1

Anybody have any experience flying their drone at high altitudes? I'm going hiking up a mountain in a couple weeks and want to take my DJI Phantom 2 with GoPro so I can get some kick ass video, but would like to first know if I should expect any performance degradation with the Phantom 2 - especially with it being so close to max takeoff weight with the 3-D gimbal and GoPro attached? For reference I have a couple different altitudes I'm looking at taking it to: one that's over 14,000 ft in elevation and another that is only about 7000 ft high. Thoughts?