a314 is mainly a respect and high-status pheromone, it gives you respect from the guys and it tends to attract a certain type of girls: the self-confident, higher status girls.. it might intimidate other girls, especially in your age group…
so if your primary goal is attraction i recommend AMMO over A314.
i recommend you use some Instant Shine with AMMO, it makes you and the people around you feel good and the girls want to stick around you more…
Optional:
if you want girls to be more talkative you could add Instant Openness, its a good ice breaker…
if you don’t have problems with conversations but want to add some depth and a feeling of connection, like you have known each other for a long time you could add Instant Honesty
i also recommend you read this post, its a good overview what the products do: