[Lackie]

Resetting SIC on the modules will need a cpstart/cpstart and when it comes back up it usually loads the default filter blocking all connections until you unload it and push another policy, so there will be some downtime.

There is also always a chance (although rare) that even after resetting SIC that you can't push a policy to the modules thus leaving you in a down state.

Make sure you have backups and if needed schedule some downtime in case things go for the worst.