Is my 6000XP wiring diagram correct?

This is an upgrade from an EG4 6500 split phase system that has been running fine for over a year, but for longevity reasons I'm going with the 6000XPs. My son and I will be switching out the inverters in a few days so I've put together a DIY friendly diagram for those of us that have more challenges with traditional schematics. (FYI- The inverter connections are straight forward in countless videos which is why I have not pictured them. The symbolic conduit depictions vary in color for readability and in width to accommodate showing the 4 colored THHN stranded wires and also their relative widths as they enter the inverters.)

This is an off-grid split phase system using the utility as a backup when short on sunshine and battery storage. It is powered by 21 roof-mounted Solarever panels 440w each. I prefer adding a whole house xfer switch to be back on the grid while addressing any problems with the solar system, but my budget is limited for now. I had already migrated all the 120v circuits to the sub-panel for the previous setup. The main panel has four 240v circuits, two of which I will move now to the sub-panel. Before proceeding we need to know:

(1) Are there any glaring and embarrassing errors right off??

(2) Is the neutral/ground bond format correct?

(3) Does the AC in and out (Black L1, Red L2) have breakers and wire gauges sized adequately and are their respective neutrals/white and grounds/green landed in the right places in the Main and Sub-Panel?

Thank you for checking my work!!

Looks nice to me, didn't do any wire size calc or anything though
All I see is you gotta get MOAR PANELS!
very nice diagram though

There's some neutral/ground bonding internal of the inverters too, make sure you have that situated (off) not sure how that works on the 6000XP I saw some people discussing it several times

Yes, at this point I still have to understand how the 6000XPs handle the neutral ground thing internally, but still have heard many times that in the whole loop there is only ONE neutral/ground bond, and that is already in the MAIN panel. Thanks, gotbeans, for commenting.

energyhunter said:

Yes, at this point I still have to understand how the 6000XPs handle the neutral ground thing internally, but still have heard many times that in the whole loop there is only ONE neutral/ground bond, and that is already in the MAIN panel. Thanks, gotbeans, for commenting.

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Yea that's correct. You want them off in the inverters
I was reading it's some internal automatic switch (I and many others don't like that) I'd like one to physically remove instead

setting 25? or 26? idk I read it a month ago