Trim gauge not working.

Hi All,(A:ELEVATOR TRIM POSITION, degrees) 10 * near 10 / -1 < if{ 1 (>K:ELEV_TRIM_UP) }(A:ELEVATOR TRIM POSITION, degrees) 10 * near 10 / -1 > if{ 1 (>K:ELEV_TRIM_DN) }This code does work before take off with the understanding that it sets my trim to 10 to take off. (-1) is then replaced with (10)and some other code to stop the process of course.I also tried it with -1 one, not very useful at take off, but it works none the less. At 70ft before landing, AP/AT and the likes disconnected it does not work! After landing it does not work either. Does anyone have an idea what prevents it from working when landing?I must be overlooking something but what?Roelof