There are problems with grunge tutorials now a days. Number one, there are too many. Number two, and more importantly, you tell people to get out their grunge brushes. When noobs look at this, do you think they are going to have brushes ready for this tutorial? You should supply them with some, it give them a better understanding. Not to mention, grunge tutorials are made for noobs, not for experienced people. Just wanted to point that out.
i remember when i did my first grunge (was a first sig) they said 'now get all ur brushes ready and start messing around' i was like wth i dont have any