So, the block standing agreement is FL270 at LIFFY.
Why are we being asked occasionally to be FL270 - 10 before LIFFY ?
I don't want to be so low and I am sure the tree huggers would be delighted to hear that it costs us 300kgs per descent to do it .
If, and only if, it mitigates holding at MIRSI, it may, may be worth it - but please Shannon, stick to the BSA, don't make up your own sub rules......... please