My jetting voyage

So I decided rather then guess my way through 80 dollars worth of jets (had hard start, hanging and erratic idle or surging while riding issues) decided to get a dyno jet, jet kit. I installed the needle and the designated jets and got it put back together enough to start it and make sure I didn't screw something up and oh my lord did it start. The throttle response is unbelievable and when it starts I can actually smell exsaust for a change (a good thing in my situation). I haven't been able to ride it yet but will post again after i do. Because I have a micro meter, been screwing with this for days, and gotten alot of advice and read alot of articles I can say without a doubt that both bullvine rider !!! And 450RRR understand jetting quite well and the theory that bigger means more fuel and more power is not necessarily true. Less in the correct mixture and way is blowing my mind. Also, the whole airbox lid off thing is not necessary true either. Dyno Jet as a company will not guarantee you a 5% horsepower increase throughout the entire rpm range if you remove the airbox lid and was quite adamant about that point even with the best exsaust system money can buy. However, this applies to people like me with stock machines outside of exsaust and air filter. The really built machines (cams pistons the works) will almost certainly need more airflow but for machines like mine ? The honda mechanic sat down with me and explained how big of a impact air velocity has to the point of picking up extra fuel and that velocity is lost without the lid on. People like me and my 450R need that velocity. I should mention that both the honda mechanic and dyno jet recommend loosing the snorkel but leaving the lid. I'm sure someone will throw a fit over this post but I have been chasing my tail for a hot minute on this and if this can help even one person I'm happy. I'm guessing this is kinda controversial but the honda mechanic also told me to watch for a smaller leak jet. He said at the shop they used to steal the leak jets out of the 250s to put in 450R's. I will continue my post after I take it for a extended spin.