The new conditioning lever implementation seems to be a bit problematic. When switching from low to high idle, fuel flow spikes close to the max. Then, when the engine achieves the high idle Ng it drops to the right value. That spike is not normal, based on video reference from PT6 equipped aircraft.
Also, the Ng overshoots the target value by 2-3% before settling to the right one, which is also not normal. You might see a 0.5% overshoot in some states, but not that much.