ADU 0013: I just bought a new Phantom and the GoPro doesn't fit the Gimbal. Why and now what?

Our question today comes from Jerome, who has asked us what to do now that the GoPro he just purchased with his Phantom 2 V2 doesn't fit the HD3D gimbal he also purchased? If you're buying new equipment, or thinking about it, you need to listen to this because there are important factors you need to be aware of so this doesn't happen to you. If you have a drone related question, you can ask anything on our Facebook page at: https://www.facebook.com/droneu