Vette, I'm puzzled by the numbers (since no one else has asked I'm assuming that it is just me). You state - using just one of the examples:

Teck can earn 75% by spending 4x expenditures = $340 million

($255 million comes back to Teck, $85 million goes to CUU)

Why do you state that $255 million goes back to Teck? (I assuming that it is $340 X 75%) CUU has spent $85 million on developing SC, so I thought it was CUU money that they would use to invest for their 25% portion of the project. But it seems like you are stating that if they elect the 75% that we have to give back all that extra portion that was earned. I must be missing your point.