If a 6-4 model declares a discover then move, does the model move 6 or 4 inches? This came up when a Sat-lock remote wanted to move closer to Camo marker, but wanted to see if the target would shoot before moving from cover. I declared discover, waited to see if he would ARO, if he didn't I was going to move.
http://infinitythewiki.com/en/Attributes#Movement_.28MOV.29 'The amount of inches this trooper can move with an Order. The MOV Attribute usually has two values: the first time the trooper moves in an Order, and the second.' The only time the second MOV value comes into play is when a trooper does a Move-Move or if terrain is in play.
See also the last two Effects for the Move Common Skill: By declaring Move, the user may move up to the first value of his MOV Attribute in inches. If the user declares Move again with the second Short Skill of the same Order, he may then move up to the second value of his MOV Attribute in inches. My emphasis.