in my case ...
i find fins , rigging and technique are SO important when going BIG
otherwise waste energy and get tired
used cambered 8.x sails in freeride before
am now converting to grunty and wide range sails in the 8.x size
like Severne NCX, SailWorks Retro , etc
find it is SO much easier - rigging, technique, etc
this size now feels small