derBrummel

i also a beginner myself, from my experience with Rocksmith and CDLC's I tell you to practice with the original RS songs... CDLC's with Dynamic Difficulty are awesome, but they are not necessarily supposed to help you how to learn power chords or other guitar techniques. I started learning powerchords by playing with 2 fingers (index+ringfinger)...after a while adding the pinky as well came kinda naturally :)