QUOTE(Note @ Feb 25 2015, 05:59 PM)

Would it be good to worry about DAS and all that technical jazz early on, or when I get really good at Tetris? Can't really describe my skill, not good but not bad either..

I don't think it would really hurt you one way or the other. If you're interested in learning about all the technical doodads, go for it. Some players prefer to just play and learn as they go. If it's simply a matter of "will changing the default autorepeat allow me to play faster?", then yeah. That's usually the case.