Pineapple,
It is difficult to understand because you would be flying a Kingair ridiculously slowly if descending at 180kts. Most turboprops are descended at Vmo minus 10-15 depending upon your operation at a 3:1 profile. So the only reason to descend that slowly would be forescast/actual turbulence. Thats why I was very curious.
I know you have a previous career, but remember you seem to be just starting off in this one, don't be too quick to judge people, you don't know if they are above or below you on the ladder.
j3