All,
The M1A2 is not as wide spread yet as you think. Due to budget constraints, fielding was slowed down. 4 ID has them, 1 CAV is just now fielding, 2 ID in Korea was due to field last year. 3 ID des not have them yet. I don,t believe 1AD and 1ID have them yet. Whole Battalions are being replaced as a set. Logistics is not a problem, as Sabot stated 98% of parts are the same. Fire control is actually easier, gunner and commander can now search for and designate targets. Turret also has an automatic lock on and slew feature that makes it like a video game. Lay the cross hairs, point and shoot.
As for the ditribution of sand to camo vehicles, all III Corps is sand, the rest of the army is camo. That makes 1CAV, 3 ID, 3 ACR, and 4 ID as sand. 1AD, 1 ID, 2 ACR, 2 ID, 10 MTN, 82 ABN, 101 ABN, and 25 ID as camo. Still looks about 30% sand, 70% camo.