I'm configuring my aircraft for takeoff and I'm a little confused on which trim indicator to use.  The display shows 0.0 at the top, so I set it to 0.5 (req) based on that.  However, FSX interprets that as -9.5.  See attached image.  Which indicator is correct - the VC, or the FSX tooltip?  I've noticed that when the trim is set to 0.5 according to the VC display, I get the TO config warning horn, whereas when I set it by FSX's tooltip, the aircraft tends to be very tail-heavy.

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