Hello i was wondering what is the difference between ammo and ammo world edition both are available and I do not know which one to get. I can recall the difference lies in the scents but is that all or is there something more significant. Anyone who has had experience with both, please do not hesitate to tell me which one you prefer and why. Also I am not sure whether i should get the regular strength or double strength. Any feedback is as always appreciated. 
both versions have 2.5 mcg per spray of none, rone and nol…alpha I think. Other than the scent they’re the same. single or double strength depends. under say 30ish you can go single, over 30 go double…or if you would normally go two sprays you can go double, just do one spray and make it last a lot longer, more bang for your buck.