Hi all! 
I'm a newbie here but just wanted to ask some Qs about the Visitor Visa.
Basically, I'm getting married soon and would love for my grandpa to be here for my wedding. My mum and dad are ready to go through with the visitor visa but which type would be better to go for (i.e. less delays, lower rejection rate)? Because there seem to be 2: sponsored family stream OR tourist stream?
He is around 78 years old but healthy - is there anything related to his age which you think might be an issue or we should prepare for or note down in the application?
Also, since my grandpa visited Australia back in the 90's when I was a kid, is that something we'd mention anywhere in the application (e.g. in our invitation letter?).
Also, any other tips or pointers?
Thanks everyone in advance! 
I'm a newbie here but just wanted to ask some Qs about the Visitor Visa.
Basically, I'm getting married soon and would love for my grandpa to be here for my wedding. My mum and dad are ready to go through with the visitor visa but which type would be better to go for (i.e. less delays, lower rejection rate)? Because there seem to be 2: sponsored family stream OR tourist stream?
He is around 78 years old but healthy - is there anything related to his age which you think might be an issue or we should prepare for or note down in the application?
Also, since my grandpa visited Australia back in the 90's when I was a kid, is that something we'd mention anywhere in the application (e.g. in our invitation letter?).
Also, any other tips or pointers?