There is the override stopper ball upgrade.. see your local cab dealer and they will be able to help you out. Best check your IDS bag first because quite a few IDS kites come with the upgrade, just not installed.
The stopper upgrade dosent clamp on hard enough.If the kite is powered and you rest the bar against it to unspin the bar,or walking up the beach ect ,it slips up and the kite depowers.
Im trying a few things at the moment to help stop this. I need it to still slide up if I push the bar away,but to hold tight enough to rest the bar against.