Any pilots carried this operation procedure out? Do you have to get permission or is it dispatch that recommends this type of loading?
It was normal operation for us. Depending on %MAC we could either use it or not, in two steps. Simply check the CG on the ACARS Loadsheet, then choose the correct option in the performance program. But loading was scheduled to use that as much as possible anyway, so usually the CG was as much back as possible without the risk to run into problems due to short-term changes in passengers/cargo.
No dispatch release or permission needed. And if we didn't want to use it, we didn't. Our choice. Not much of a difference anyway.