Hi Deltaalphalima1. I installed the kit and did calibration (provided on your website) many times but my z-axis is at 6% at off position and 0% at max position. I attached the screenshots.
Throttle at off position https://prnt.sc/shlkdl
Throttle at max position https://prnt.sc/shlkoz
Update: I was able to solve the problem by running the original window calibration first: Throttle HOTAS Warthog >> Game controller Settings >> Calibrate >> Finish. Then I ran the Thrustmaster throttle calibration utility from your website. All seems running fine now.