Slider on the T16000m stick acting weird with the throttles

[Corall]

Hi i got a question. I just got the ini a350 but have some issues with the throttles, i use the T16000m stick with the slider on it - ive calibrated the throttles and yet when i move the slider slightly forward to gain (for example) 25% power, it immediately jumps to about 50% or even to the toga position. Anyone that can help me through this? much appreciated