To be quite honest, we've just started it. Realistically, there is no reason.... We are very confident that in 21 days, give or take, we can get them in. It's not a hard and fast number, and it doesn't end at 21 days. We are just beginning the process now. Over the coming months we will be collecting that data and refining the process as we go.
On February 9th, 2017. See this statement in context.