Speed Infusion 11 does not work

The reason this thread was made is because it's not widely known. I've been frequently reading threads where people weren't sure if it was working how it was supposed to, debating what they should do with their SP, saying "their friend's friends heard from someone that it worked" et cetera. This is just concrete solid proof that it doesn't work, to remove all doubts.

Just because you told us it doesn't work doesn't mean it's proof. Numbers, dude, numbers!

Also, with Morgana's concerns, I don't think anyone's sure about the formula. It could very well just be a table of numbers corresponding to certain weapons and speeds. Take a look at this thread. These guy's findings are usually in increments of 30 and 60 milliseconds. Where it is 30 or 60 milliseconds seems to be all over the place.

EDIT: Your thread title is misleading too. I came in here expecting to see claims that there was absolutely no booster happening at SI 11.