first of let me say this before i comment on the boost bottle. stfu with your stupid fucking search feature! every time some one post a topic that theres some smart ass who comments by saying use the search feature. seriously? the question was regarding boost bottles not banshee forums literacy. if he wanted a smart ass answer he would of made the topic tittle "Does the search feature really answer all of my questions".
now back on topic, the boost bottle acts like a crossover intake, and many (not all) banshee riders here have in some way linked both carbs together via boost bottle, billet cross over intake or even a simple crossover tube. the advantage to this is when your engine starts sucking gas into the cylinders, sometimes the dual carb setup isn't always perfectly synchronized. so when the fuel from one carb is on its compression stroke the opposing side is starting to fill itself back up with fuel. with having the carbs linked together it helps because both carbs can be focused on one cylinder.
its what i like to call the buddy system. now i dont see how a boost bottle can be called junk when crossovers are exactly the same theory and no one talks trash about them. the only complain i can see being legit is that some older boost bottle designs created unnesseary stress on the intake boots and caused them to crack, but since then i have seen new and improved boost bottle setups.
take what you want out of all this. i hope this made sence and let me wrap this up by saying this. i dont see the boost bottle or any other form of this creating huge hp on the dyno, but i do see how this could over all give you a quicker snappier throttle response.