... I believe you are correct Tod. I have my Thai visa in one passport and my Vietnamese visa (TRC) in the other. Works a treat but I still have to renew them about every 5-6 years cuz they fill up fast.
Danny Williams ... I have worked 2 passports for 15 years. Just need a company letter or some good justification for a second passport, and you need it every time you have to renew one.
My letter states I need it to apply for visas while travelling for business and for visiting "incompatible" countries.
... nae bad Andrew, no I registered as the housemaster as I have a yellow Tabian Baan and attached a photo of it. Pretty straight forward TBH so I'm pretty chuffed it was so easy.