I'd like to second the "not it time" thought. Let's say some government agency needs 1K of these parts. Some company can find ten lots of 100 from all over th

I'd like to second the "not it time" thought. Let's say some government agency needs 1K of these parts. Some company can find ten lots of 100 from all over the place including one in Shenzen. They put them all in nice tubes or trays or whatever and sell them off to the customer, who, a year or two later, wonders why 10% of their boards are failing initial power-on tests. Or, even worse, the parts are similar enough that the board passes some tests, and they don't fail hard until they're in the field...