Soo... I'm starting to think maybe it would be better to move my service entrance to my detatched garage.
Since a tree I had not otherwise been planning to remove has fallen, I now have space to put in an above ground pool.
The current overhead wire location would rule out any non-paved area of my back yard because of 22.5 clearances required in section 680.
Moving the service entrance to the garage would also make the service drop for the PoCo more straight forward.
I upgraded the service from 100 amps to 200 amps, the main reason for doing so was that I wanted 100 amps in the garage. I have a 1/0 underground feeder, and I think 100 amps for the house using the 200 amp panel as a sub should be adequate, so no rewiring for the house would be needed.
In the diagram attached it mostly shows the current arrangement and the proposed location of the pool, as can be seen it's unlikely to meet clearance requirements to the pool with overhead service to the house.
What I think I would need to do is use something like this at the service entrance attached on the outside of the garage:
From there I'd run 4/0 to a 200 amp main in the garage, 100 amp breaker off of that panel to the 1/0 feeder to the house.
Am I correct that I can use the 200 amp breaker in the combination service entrance device outside as my main disconnect, then connect my 4/0 to the lugs for my feeder to the panel which is on the other side of the garage?