Speedbird744, sorry for the delay in answering, it has been interesting lately.
There is virtually no such thing as PICUS under FAA regulations. One noted exception is during flight training for multiengined aircraft (if you want more info I'll start a new thread on that).
Therefore, you are welcome, and you should, log all of the time that you MANIPULATED the flight controls in that C208, providing that you can prove to have been trained in the aircraft's operation and systems (in house or FlightSafety, SimuFlite, etc..). That time should be logged as TT, PIC, SE, TURBINE, IFR, whatever you accomplished. This time will count in your total when you fill out the 8710 forms for your ATP-FAA. What you may not count is all the time that you spent twirling your thumbs, enjoying the scenery and talking on the radio.
Long story short: you touchy-feely controls(power levers, yoke, rudder), you log PIC time (strictly under 14 CFR 91 however).
Hope that this is good news for you, feel free to PM me if you need clara.