I had to add some rubber spacers to the mid-position seat supports (about 1cm deep) to stop it sagging in the middle (used a couple of bit holders from my tool box). Sugru is awesome - repaired a leaking coolant hose on a Tiger 800XC with it whilst away touring and after 12 months still hadn't bothered to/needed to replace the hose - it should be in every bikers tool kit!
