Hey Blud, I don't think this data is reliable. Nothing against the people who answered, but two people measuring the same cue will most likely get different results. Especially if they are using those plastic hole gages for the tip diameter. They flex quite a bit and depending on how "tight" of a fit you think they should have, you can end up with a large error. As far as weight goes, many people "know" how much their cues weigh, but then when they actually put them on a scale, their estimate was quite wrong.
If you want some type of average, you should probably go to your local rooms and weigh and measure each cue yourself, using your own instruments.