From what you've described, I'm also thinking its this. It happened suddenly and happened when you were already on plane. Its running a cylinder short. Check the spark plugs, wires, and ignition coils. I just had the same issue. Thought it was fuel related and eventually saw the bad plug terminal.

Loose battery connection or ECM going out possibly.

I have no clue but I’m pullin for ya coach!

I have had this same exact thing happen twice. Both times it was a bad coil.

After it bogged down and died what happened? Easy restart and smooth idle?

It never died, was running and the boat just came to a stop, almost as if it was put into neutral. It never stopped running and ran smoothly. I could give it slight throttle and it would idle but when I gave it more to get on plane it just would rev up and not go anymore.

Sound like motors ok hopefully its just the prop

It’s either the prop or your lower is shot.

Worst case, how much is a lower unit gonna cost me.

$3k - $5k.... or check out these. https://texasfishingforum.com/forum...lt-warranty-for-most-v4-v-6#Post11784982

I have full coverage insurance, will that cover any of it?

Probably not, unless you have a Rider that will cover mechanical failure.

You'll have to read your policy... there is probably a summary page that will give you an overview of coverage.

It's a spun hub, you're getting off easy.

And there is 100% certainty that there is a loose nut behind the wheel.