LM has released P3D V3.2 update, which based on my testing has fixed the
erratic control issue that some of you were experiencing. You can test this out by setting "Active=0" in the [InputRelay] section, re-do your axis assignments in P3D and then try a flight. If control input is normal, you can then just leave "Active=0", or delete the entire [InputRelay] section. If you still experience the erratic control input with V3.2, please let me know, and also post something on the LM forums so they know the issue is still active.
Another issue that LM has addressed is controller order numbering. This only applies to those of you using more than one flight controller, for example, a flight yoke and a trim wheel. With FS Force, you would normally configure your trim wheel in FSFORCE.CFG, with an entry something like ...
where the joystick number was determined by the display order in USB Game Controllers. With P3D V3.2 this no longer applies. Rather, the controller order is determined from within P3D, under Settings / Controls ...
Set "Sort By" to Number, and then observe the controller number in the "Controller Type" dropdown list. Note that this only applies to P3D V3.2 and later. FSX still uses the USB Game Controller dialog to determine controller numbering.