my coach is getting old and broken, as the most senior student (purple belt) I am being handed more and more of the teaching responsibilitys. which i love doing anyway. I just want to know if anyone has any advice on how i can get the most out of roll time? we have 3 blues and quite a few good whites. some things that have helped me so far - having a clear game plan - sticking to the basics - methodically working through the positions making sure each gets some "quality time" - teaching the students exactly what I'm going to do to them (and then doing it) - teaching how to defend and counter the techniques properly (and still try to do it to them) - making sure their escape and guard passes are up to scratch - starting from bad positions regularily so anyone got any more suggestions?