Turboprop conditioning lever issue

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.