I run dual 200 amp circuits into my house. The problem is that the transformer is in the Far side of the yard and from there to my house there are two 200 amp distinct circuits. So… no single point where I can install the Sense CTs.
What I did was splice two sets of CTs in series (not in parallel- tried in parallel, but Sense did not recognise the CTs at all) and let it loose. I know this is an unsupported config, but Surpassingly it all works well, discovers new devices as expected, measures total consumption correctly, etc. In a word- success. It may clip over 200 amps, but it is for a very short period of time and does not change my measurements and stats enough for me to care.