I agree with idea of one large trsf, but the pound is changing every day, would hate to make a large trsf then see it rise up. Could make a big diffrance to how much you get.
I think the more you can transfer at one time is your best bet!Only one transfer charge and The baht is not going to go up any appreciable amount as every indicator there is,points to a strengthening trend for the baht.It is completely unrealistic to think that the baht is ever going to rise to the levels of the past after the 97 debacle because the problems in the system that caused that rise,no longer exist and Thailands banking system and economy is relatively solid and growing in comparison to our systems!
The BOT has managed to keep the baht within the 33-34 range against the USD to keep exports growing,which they have been doing fantasticly,42% growth in May alone,which might cause them to let the baht strengthen a little more,but not to quickly as the gov't will want to support some populist programs before the elections.
With the economy growing so quickly,the BOT will probably raise interest rates here,which will also strengthen the baht!