I've had it removed once and I felt no difference, since then I moved back to using the complete spider hose setup.
Why did you put it all back? This is the first thing I have deleted, all other systems are a go on my car still.
I came up with the same conclusion as everyone else. no noticeable difference.
I think I will leave it this way and maybe add a vacuum reservoir to the brake line. I want to relocate the one for the N249 anyway so I'm thinking of having those 2 parts of the vacuum system share a new one.