Oh.....and a Sperwer can provide a valued link for directing Arty and CAS fires in certain situations, but for some folks, its noise and the quality of its optics are simply not adequate./quote]
I am not sure what "certain situations" are, other than being airborne and in the right place, and I am not aware of any advantages to Predator in that regard. Yes, noise is a factor at the altitudes in which Sperwer operates (below 10,000 feet MSL). The EO sensor system is older technology, but the lift capability of Sperwer is also a limitation in the sensor capability.