Make no sense. Either you apply using the lump-sum Bank Deposit Method, or the monthly transfer. If you use the monthly transfer method, it must continue in perpetuity. Regardless, if you want to "stop" and change to lump-sum Bank Method, then you are simply in the same place, with 800K in Thai Bank, that you or others have criticized as being "tied up". In addition, by using the monthly transfers, you have incurred more transaction fees getting there.
Yes, I DO know. But you missed my point. The required monthly transfers, especially for a married couple, are FAR FAR MORE than needed to live comfortably. So, where do you think the excess money is? It's in the Thai Bank you transferred it to. While I supposed one could just send it back out of the country -- that would incur fairly substantial fees both for the re-transfers, and currency exchg. fees. PLUS, the perpetual transaction fees incurred for the monthly Tranfers.
In answer to your "criticism" of the lump-sum Bank Deposit Method: If, like my wife and I, 65K x 2 or 135K Baht per month is FAR more than we need to comfortably live on in (we reside comfortably in CM on only about 30K Baht per month), then we would still be "tying up" in a Thai Bank all that extra money coming in continuously from the monthly transfers. After approx. 1 yr, would then "tie up" even more than the lump-sum Deposit Method.
Clarification: If converting to original Non-O first, then no "Seasoning" of monies required. 2 Month seasoning only required for the subsequent 1-yr Extension.