Company Policy is that you set the AI on the ground and don't touch it again.
The B412 on skids will be about 4 Degrees nose up on the ground and zero in flight.
The folk at Sikorsky have solved this deleamour by not giving you any knobs to play with [older S76's].
But whatever you do, don't go resetting your AI reference in IMC or whilst turning.......yes it does happen.