IMO SP doesn't need that feature anyway,Andy. I'm still skepitcal after all these year from being assigned to a vehicle that was allegedly "amphibious",which feature our regimental commander knew better than to force his crews to pursue as to positive proof.
If our M551A1 vehicle had been placed on a barge,we definately would not have been manning the vehicle. Abandoning ship is one thing,abandoning an armored vehicle first,then the ship,well we would have to pass on that.
