User Satisfaction
		With Roller Mouse Option					Without Roller Mouse Option
			Overall Satisfaction (1-9)				Overall Satisfaction (1-9)
				6				8
				5				7
				7				7
				7				8
				8				6
				7				8
				7				7
				6				8
				7				7
				7				9
				6				8
				8				6
				8				6
				4				7
				6				9
			Averages	6.6				7.4