If you are spraying CC 1" thick, you are likely to get a lower yield. If you are spraying CC at 3" thick in one pass, your yield will be better. If you spray CC at 7" thick in one pass, you are likely to get the best yield from your foam.
This is true for ALL brands of foam.
The important thing to note is that only high quality foam can BE sprayed at 6" or 7" thick. The information on the depth you can spray can be found on the Technical Data Sheet.