do pheromones have a build up effect i.e. after a month they are stronger than at the beginning, if so does this make it easier to OD? Do pheromones work better in less crowded places? Do Pheromones work less well in windy and wet days? How close do you need to be to the girl for them to detect the pheromones?
lol i got the same questions man, but as far as the build goes, i dont think they do in the sense of easier ODs. there might be a ‘buildup’ such as girls will pick them up easier because theyve gotten used to recepting them. Distance-wise ive gotten best results 3-7ft away from them. in a crowded area the effectiveness wont go down, just spread out and influence more people 
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im still a noob to this stuff, so i might be rong on some things, but hope i helped!