what is the diference between vson and vgsot offering in the azure ?

[#1]

Im trying to figure out which one do i pick ? i want to have a 90 day trail license and capability to create a grid master and a grid members. Any one has an isight of how to read those acronyms ? is vsot just the base appliance while vgsot is anyone that has grid licensing ?

Thank you 

[#2]

Infoblox internal lingo.

vsot = Virtual Son of Trinzic. i.e. it is the "X5" generation of virtual appliances. Now end-of-sale but still functional.

vgsot = Virtual Grandson of Trinzic. i.e. it is the "X6" generation of vritual appliances. Current appliances. Probably go for this one.

Trinzic (the original) is what is called the "X0" generation.