Finally submitted application successfully. There is so much conflicting information on forums, the VFS service at Trendy Building and the UK HMPO. But a few hints here for anyone who might have been following this:

As the guys here pointed out. No need to have the Birth Certificate verified by the MFA

Don't need copies of the wifes and kids Tabien Baan (As I was advised to do) Proof of address can be pretty much anything. Utility bills, hospital notes.

I did encounter one issue though. I filled out the application form on the PDF on my computer. Printed it out and signed it. I checked this with the HMPO in the UK. However, in the land of smiles, it must be filled in by hand!

Thanks for the help all.

An employee of mine got a 1 yr b a few years ago there.

Said it was the easiest ever. No queue even. That's all I know about it though.

Kota Bharu has always been very easy but no idea if they have also tightened up over the last couple of yrs

Thanks for the links Tod. I am familiar with this and have everything ready. Have been through the process myself a few times over the years and as recently as last year. The issues I am having are strictly related to supporting docs and certification of translations.

In Phuket. Document was translated by the hospital here right away and stamped by a translation service. Just that someone wrote on a forum I read that it had to be certified by the MFA