Aircraft behaves in turns?

Another thing I want to adjust is how the aircraft behaves in turns. This is
somewhat related to this post, but still not really:
aileron-an-airplane-needs-in-a-tur.html> In the video below you can see how
much aileron input the pilot gives to make the plane bank. About 7-10
. After the plane enters the turn, very little input is needed to
keep the plane in the turn
, nor is much trim or back pressure on the
stick needed
to get the plane to hold the turn. I can accomplish this by
reducing the “wing_dihedral” but then I don’t have the manufacturer’s value. I
want to keep the manufacturer’s geometry, and adjust in other places. The
plane also yaws too much in turn if I change “wing_dihedral”, and yes I know
the plane has Yaw Damper, but I have also tested this and I would say that the
Boeing 737-800 flies very cleanly in turn without yawdamper. The slip
indicator barely moves visibly if you just make a normal turn without yaw
damper. I would say 0.5 to 1mm on the PFD. Even the PMDG which is considered the
best has not succeeded in this. See video: He have to put about 5 degree of aileron
input during the hole turn. My own experience from the Level-D 737 simulator
is that the plane behaves something like the first clip. The problem is that
if I adjust in one place, it is destroyed in another. What parameters can I
try to adjust to achieve what I want. For example, if the plane is well tuned
for level flight in climb, the nose dips too much in turn. If the plane is
well adjusted in climb, the nose rises too much when the speed increases. My
experience is that no extreme movements of the lever are needed in normal
flight. But I don’t know where to start. I tweaked “Flight_tuning” But this
made the plane sticky like syrup. It made it feel more like a 747. When I look
at the CFG file for the 787, which I think flies more like the plane should, I
see that they have “wing_dihedral” 9, which of course could be correct. This
leads me to believe that this is not where I should adjust.
When I read about CFD it says: “Tail Control Surface Effectiveness: The air
that hits the tail may be deflected by the surfaces in front of the tail
(propeller, wing, fuselage). This will impact trim, effectiveness, range of
controls .” Without giving any more detailed tips and advice what you need to
adjust when it comes to Tail Control Surface Effectiveness. Does it need to be
reduced or increased. Which parameters are best to adjust then? Long text,
hope someone can bear to read and maybe immediately understand where the
problem lies. Thanks in advance! Jacob