I am having an issue with centering in DCS:World with my new TM Warthog.  The gear is fine and the joystick shows as perfectly centered both x and y with a value of 32767 in TARGET.  The issue is that once I start a mission or instant action and start any input, the sim is showing my joystick as not being centered.  Generally the crosshairs show the stick being pushed forward ~5-7%.  When I check the axis tune within the DCS options menu, it also shows close to perfectly centered as well.   
I can trim out this input but I would much prefer to understand and hopefully correct the sim to be centered in game.  I have searched around and found calibration tools but nothing covering this issue (I may have missed something or I could just be blind).  Thanks in advance for any help.