[justa-hairyape]

Here is the Kent Wells Techincal Update done 6 dyas after they installed the Sealing Cap. This shows what the plans were for the kill process.

Kent Wells July 21st Technical Update

But then I read on the Oil Drum that the procedure would be reversed. First relief then top ?

[Marine_Uncle]

"But then I read on the Oil Drum that the procedure would be reversed. First relief then top ?"
It could be as simple as all key players now agree either action coming first does not really pose any more a potential problem then the other way around.
Surely. BP at this stage does not want to be seen as screwing the pooch.