What is the difference between the three Ammo to-go types?

[vikingdude21]

I noticed in the togo section there were 3 types of ammo does anyone know the difference between the three?

[mobocaster]

Here:

Difference between Ammo world, summer, and standard?

Hey guys just wondering what the difference between The World, Summer, and Standard editions of Ammo were? Is it just the scent? Which one is better in your opinion? Also which spray of a314 do you guys like? 1.32a or 1.32b? Major differences?