Yes, I have noticed this. If you set your throttle to full, and your RPM to full, my RPM is the left wheel on my fighter stick, and then up any spitfire.
Watch the power and RPM levers. To bring them to the full forward position, all you have to do is depress any button on the throttle or stick respectively. I have tried this with a powered USB hub, using the computers USB ports, a PCI-E USB 2.0 card, reflashing the bios, I have not
tried it using only the Windows calibration tool, I use CH control Manager, and still get the same results. This only happens when you first launch the game, ie. double click the AH icon, I have Windows XP OS. Thought it was just my computer doing this. Weired....