In my eyes it'a a good idea to make Tuts. New players don't know where are good BFG-Jumps on maps. If they are shown to them in a demo, they will be able to train on their own.

Btw: If they see 2 different jumps from the same point, in my opinion they will notice that the angle is important. Really interested players will start to try such jumps.

MfG TA