Taike, good stuff, as usual. I'm not ranking them in order of importance, but, #8 is crucial and without it, you'll never be a "tight" group. There is one I'd like to add though (since we're talking about a BAND setting)and that is REHEARSAL. #3 Practice, sort of implies getting your own individual act together (and that's absolutely important)but to sound great as a group, you've got to rehearse (and on an on-going basis).

chas