I am terrible at this and have no intention of trying to get better before DoA5 launches. I just do Lars' 10-hit combo over and over and when they catch on and start punishing me I start actually using other moves. Surprisingly effective against everyone that isn't a veteran. I either steamroll people or get steamrolled myself lol. Kind of fun. SUPER easy achievements too. I already have all but like ten and that's just because I haven't bothered trying for the rest yet.