why , page-5

Wazzooo
There is a floor in your number 1 answer. You stated in 1.

"We have the info, the rest of the market don't and our bid is structured to keep that little secret held as tightly as commercially possible"

BOW opened a data room and gave any potential bidders any and all data they asked for.
It is my understanding that at first they were holding back some crucial data and techniques but after being persuaded by someone in their management team they agreed to release all. Sensible thing to do IMO.