Maybe I've grown softer in my old age but instead of blasting the little kid for making his chart, he should at least be given a pat on the head for taking the time to learn. Something that quite a lot of players just don't seem to do these days, including a large number of posters in this thread. It's funny seeing quite a few dog pile on the kid when they themselves couldn't fight their way out of a wet paper bag.
Actually I did a similiar thing back when I was new. Not as "sophisticated", but I made small tables with speed & climb rates of the most common fighters, printed it out and had it always at hand when flying.