Glad the info. was helpful. Yes, often, tweaking of control surface sections (such as the [Rudder]) may require looking into the parent component too - in the case of [Rudder] it's usually called [VertTail] or [VertStabilizer].
Here's the relevant section from the same data ini used as an example in my previous post.
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[VertTail]
ParentComponentName=Tail
ModelNodeName=VertStabilizer
DestroyedNodeName=
ShowFromCockpit=TRUE
DetachWhenDestroyed=TRUE
DamageRating=DESTROYED
MassFraction=0.030 -----> the lower the massfraction value, the more fragile the part and more susceptible to ammo. damage, etc. (test in increments of 0.01 approximately, up or down)
HasAeroCoefficients=TRUE -----> leave this as "true" if you want the panel/section to be a part of the overall flight model, otherwise it is purely an aesthetic part
CD0=0.0017 -----> drag value at zero (no) lift
Cyb=-0.0609 -----> side force due to sideslip
Cyp=0.0017 -----> side force due to roll
Cyr=0.0261 -----> side force due to yaw
Clb=-0.0005 -----> roll due to sideslip
Clp=-0.0001 -----> roll damping value
Clr=0.0004 -----> roll due to yaw
Cnb=0.0122 -----> yaw due to sideslip
Cnp=-0.0017 -----> yaw due to roll
Cnr=-0.0177 -----> yaw damping value
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For the c-values above, I would tweak in small increments, of about 0.001 (where a bigger no. equals more effect - and as indicated in my previous post, don't be confused by the negative value in some entries, thinking that nos. are getting smaller as you go further below zero - the negative value refers to "opposite" or inverted forces in the TW data inis).
Other values indicated in the section and that I've not included here, such as mach values and alpha nos., I usually don't bother touching - except in some cases alpha nos. but only for wing sections (and left/right stabs) - to tamper with rate of climb, if necessary. Often, cutting-and-pasting of mach and alpha entries from the [VertTail] section of an aircraft data ini that works well into another data ini that is problematic solves problems quickly, but might require further tweaking of some more parameters. Good luck with your tweaks.
Von S