Use 80 kgs for startup and taxi fuel.
Never had any probs with the props, a few probs with flaps occasionaly (the achilles heal of the bras). Other than that, usually a very good ship techincally wise.
But in general, plan at 280 knots tas, with a fuel burn of 1200 lbs for first hour (inc climb), then 1000lbs per hour after that. (Cruise at FL210 to FL220 - optimum)