i will give it a go now that that i have got use to rigging up 2 sails/boards.
i have tried this before and could not wait to get back on 5.0m
the stress on mast,leech flutter are other negatives of this setup.
however next 20 + day will rig up 5.8m and close to max downhaul setup.
looked at y/tube clips last night of le defi for an hour,love to have a go if had money for travel.