The A109 doesn't have a self centering nosewheel: at least one VH reg had the wheel hit the bay doors some years ago and cause a bit of damage. The hydraulics won't take the wheel past that first obstruction (the door), but the requirement to lock the nosewheel before takeoff is there for a good reason. A final roll forward should also be made when the lock is engaged to ensure that the NLG is locked before take off.
One pilot I knew, however, steadfastly refused to ever lock the nosewheel as the selection lever in the cockpit dug into his leg while flying when in the lock position
