Aircraft rocking/Bouncing solved

Look through the aircraft.cfg file where 2K2 wrote all the air file parameters and there's a section called "[flight_tuning]". This is where the effectivity numbers are. To fix the rocking issue, adjust the roll stability to 2.0 and aileron_effectiveness to 1.5. This does well for large and small jets, and anything that flies high and fast.

[flight_tuning]
cruise_lift_scalar=1.0
parasite_drag_scalar=1.0
induced_drag_scalar=1.0
elevator_effectiveness=1.2
aileron_effectiveness=1.5
rudder_effectiveness=1.2
pitch_stability=1.0
roll_stability=2.0
yaw_stability=1.0
elevator_trim_effectiveness=1.0
aileron_trim_effectiveness=1.5
rudder_trim_effectiveness=1.15




Altitude Hold problem solved

Locate the aircraft.cfg file for the plane you are working on and add the following line under [pitot static] subsection. If the aircraft does not have a .cfg file you can create one!

[pitot_static]
vertical_speed_time_constant = 1 //try a value larger than 1