Yes, it needs both on approach, I was thinking more of the way altitude/speed seems more directly connected in a piston plane than it does in a turboprop. Probably just my perception so far, maybe more connected with the constant speed/variable pitch prop over a variable speed/fixed pitch one as well.
I’ll keep practicing, i did do some fun tests to find a rough setting for a 3deg approach yesterday, it was something like 1050rpm, prop full, flaps full, 85kias - this is one great thing with the sim, answering ‘what if’ questions.