Hi just thought I would share my findings with you.
I haven't had FFS as yet but am too in the process of finding a surgeon in Thailand, although I'm in no huge rush as I plan on saving up cash for about a year to do this.
I have heard and seen positive results from Dr.Suporn, there are examples on a few sites and also Youtube is great for FFS before and after examples.
From what I understand Dr.Suporn is at the very top end in Thailand (one of the best), and on that note considered to be quite expensive for Thailand.
There are a few other names you may want to have a look at too, again try youtube for them and you will find a few girls who have had FFS done and posted there results. These 3 are all considered very good too, in no particular order.
Dr.Preecha, Dr.Chettawut, Dr Sanguan
Hope that helps something,
Miya