- Joined
- Aug 11, 2014
- Messages
- 24
- Reaction score
- 1
Hi, I have installed a demo 4SC Pro system on a site. I am about to upgrade to to annual 8SC version, but am concerned if in three months time it turns out they need more SC's can we then upgrade to 16SC for the incremental difference in cost between the 8SC and the 16SC, or would we then have to pay the full 16SC cost on top?

