RE: Prop tracking correction
It is hard to correct it if it is already bored to fit the crankshaft (did you use the appropiated tool?), you have to be careful to avoid excesive vibration which may cause harm in the engine, servos and/or the airframe.
The indicated measure (1/16 or so), is not to be worried about but good to tell to the manufacturer so they can improve that.
Best regards.
Alfred