I am having some trouble setting up my drone. 
I have the drone set up on a bench and the horizon reads level on mission planner, but the server outputs are uneven.
I am running a Pixhawk 4 mini with Arducoper 3.6.7
Here is a video of the servo outputs: https://photos.app.goo.gl/3nMh7E54tUvu88Yq8
Why are the servo outputs uneven? and how would I go about debugging this?
That does not work like that. It is a closed loop. the motors are only even if the copter is flying. if the copter is on top of a bech, the motors have some irrelevant values.
The drone leans back when I throttle up with props on, I was hoping this was the issue
Can you think of any other reason for the drone to lean back on throttle up?
Is the center of gravity in the geometric center of the frame ?
yup.
Ive check for the usual suspects.