If you apply in the US you would be applying for an O-A visa and have an insurance requirement. If you apply in Thailand it would be an O with no insurance requirement. But you would have a requirement a deposit in a Thai bank.
You may use your VA to an extent but it would probably not be on the list of acceptable insurances.
So your choices are get a different insurance or keep ฿800.000 ( for the most part) in a Thai bank.
more like 5 or 6 years ago. Not really nesting, just IO trying to see if you had the requirements for the previous year. If someone got a 2nd extension based on banked money they would be asked for proof of money in the bank for the previous year. So immigration COULD ask for the proof of banked money in the bank for the year before switching to income.
in my case I never had the 800k but I did have a "simulated" 800 from an agent. After my 12 plus 3 months I did 12 consecutive deposits of 65K +. So when the new extension was due I just used my my 12 FTT deposits. IO did not check my previous "800K" but they could have if they wanted.
I just did this conversion last week at Jomtien. In my case, there was no check for the previous 800K and I just had to show the special bank statement showing my 12 deposits.
Although they didn't check me, immigration could if they want.
you are using common sense which is a mistake. The IO will use whatever they want as proof. If we are talking about the income method, the standard method is only a statement from the bank saying that they are foreign transfers and a list of the 12 deposits. I just did this last week at Jomtien.
Unknown what other offices would want. And of course if we are talking about the banked method, everything is different.