Lately while testing my plane, I have been having some issues with the back two motors. While attempting to take off (I have tried QHover, QLoiter, and QStabilize) the front two motors pick up much higher speed than the back two motors. This results in the front of the plane picking up much higher than the back and I am unable to safely take off. While looking at the Status in Mission planner to see how the outputs lined up, RC5out and RC7out are reaching much higher values (1941 and 1949 during this test without props) while RC6out and RC8out are reaching only about 1400 each at max. I tried moving the plane in QLoiter to see how the back motors adjusted, but they consistently maintained lower values than the front. In order to try to fix this issue I will be trying to recalibrate the level as well as the back ESCs. I will update this after doing these things. Please let me know if you have any ideas regarding what the issue could be and what I could do to fix it!