Hey James, you can try mine but note that I'm only using 3 axis. I have zoom on my throttle buttons.
[Advanced]
Average=4
IgnoreBackwardZ=0
MaintainPausedData=0
RollRelativeRot=0
RelativeTransYaw=1
RelativeTransPitch=1
RelativeTransRoll=1
RelativeTransX=0
RelativeTransY=0
RelativeTransZ=0
[Sensitivity]
Yaw=12300
Pitch=18000
Roll=300
X=13500
Y=300
Z=300
[Smoothing]
Yaw=200
Pitch=200
Roll=115
X=200
Y=110
Z=118
Zooming=1
SmoothStableMultiplier=25
SmoothRawMultiplier=25
Dynamic=5
[Inverted]
Yaw=0
Pitch=0
Roll=0
X=0
Y=0
Z=0
[AxisEnabled]
Yaw=1
Pitch=1
Roll=1
X=1
Y=1
Z=1
[AxisMap]
Yaw=0
Pitch=1
Roll=2
X=3
Y=4
Z=5
[YawCfg]
X0=0
Y0=102
X1=2
Y1=69
X2=2
Y2=77
X3=291
Y3=1
[PitchCfg]
X0=0
Y0=102
X1=2
Y1=69
X2=2
Y2=77
X3=296
Y3=2
[RollCfg]
X0=0
Y0=102
X1=2
Y1=69
X2=2
Y2=77
X3=320
Y3=2
[XCfg]
X0=0
Y0=102
X1=2
Y1=53
X2=2
Y2=54
X3=351
Y3=2
[YCfg]
X0=0
Y0=102
X1=2
Y1=53
X2=2
Y2=54
X3=320
Y3=2
[ZCfg]
X0=0
Y0=102
X1=2
Y1=69
X2=2
Y2=77
X3=320
Y3=2
[Output]
MouseX=0
MouseXEnabled=1
MouseY=1
MouseYEnabled=1
MouseWheel=0
MouseWheelEnabled=0
MouseAutoPan=0
MouseAbsolute=0
MouseWheelScale=50
PPJoyControllerNumber=1
FreeTrack=1
TIR=1
Mouse=0
PPJoy=0
Keys=0
SimConnect=0
FS=0
[Mapping]
Pause=
PauseBeep=0
PauseToggle=1
Center=Num /
CenterBeep=0
CenterToggle=0
CustomCenterSet=
CustomCenterSetBeep=0
CustomCenterSetToggle=1
CustomCenterReset=
CustomCenterResetBeep=1
CustomCenterResetToggle=1
SmoothStable=
SmoothStableBeep=1
SmoothStableToggle=1
SmoothRaw=
SmoothRawBeep=1
SmoothRawToggle=1
Yaw=
YawBeep=1
YawToggle=1
Pitch=
PitchBeep=1
PitchToggle=1
Roll=
RollBeep=1
RollToggle=1
X=
XBeep=1
XToggle=1
Y=
YBeep=1
YToggle=1
Z=
ZBeep=1
ZToggle=1
FreeTrack=
FreeTrackBeep=1
FreeTrackToggle=1
TIR=
TIRBeep=1
TIRToggle=1
Mouse=
MouseBeep=1
MouseToggle=1
Joystick=
JoystickBeep=1
JoystickToggle=1
Keymap=
KeymapBeep=1
KeymapToggle=1
SimConnect=
SimConnectBeep=1
SimConnectToggle=1
ProfileA=
ProfileABeep=1
ProfileAToggle=1
ProfileB=
ProfileBBeep=1
ProfileBToggle=1
ProfileC=
ProfileCBeep=1
ProfileCToggle=1
[OutputKeys]
YawThreshold=50
YawHold=1
YawPos=
YawNeg=
PitchThreshold=50
PitchHold=1
PitchPos=
PitchNeg=
RollThreshold=50
RollHold=1
RollPos=
RollNeg=
XThreshold=50
XHold=1
XPos=
XNeg=
YThreshold=50
YHold=1
YPos=
YNeg=
ZThreshold=50
ZHold=1
ZPos=
ZNeg=
[CustomCenter]
Yaw=0
Pitch=0
Roll=0
X=0
Y=0
Z=0
Anyway, you won't avoid trial and error with freetrack. The settings depend on lots of stuff. But the result is very satisfying.