I take it you are trying to power up your rig?
well since i have to much bending going on... i know if i stiffen my mast, and reduce pre-bend...i will have more power.
But its a question of:
do i need more power? - prob not
do i risk my mast (at all) by adding this power (since i sail solo) - don't think so but looking for others input
Battens ... yes i know they need a little tightening.. but this makes getting the sail (in light air) almost impossible to switch over and curve to the correct side.. so i have them a little on the lose side..