I look at it differently. The first step is to prove the process - to the appropriate level of control limits, and then the second step is to optimize the proc

I look at it differently. The first step is to prove the process - to the appropriate level of control limits, and then the second step is to optimize the process. You may say it's "significant", but if you look at it another way, it de-risks both tasks as opposed to doing both at the same time but having much higher risk. So in my mind, the "significant work" is less relevant, as the derisking is much more important.