Hello there, I just got off first flight with my MAVIC and I'm having BAD Jello all over. Waves of JELLO. Gimbal is sitting free of move and everything else is fine. No vibrations on the MAVIC from the touch of hand. Any tips? IMU calibrations? Where do I find it?

Just to clarify, you have removed the gimbal clamp, gimbal cover and the tags used to protect the gimbal camera, right?
The environment is suitable for flight, there is no wind, and you fly it under P mode rather than S mode?
If still the same case, then please upload an original video to dropbox and provide us the link, thanks.
Here is the tutorial for your reference to calibrate IMU: