Consistency.
For some weird reason when I play really good players my game gets better, but when I play bangers my game drops and I start messing up easy shots. For example, I missed a straight in shot that needed slight left english vs. a banger that I normally would pot in every time. But against Dr. Cue a couple weeks ago when he came through here doing an exhibition, I break and pot something, combo the 8 in, combo the 7 in, carom the 6 in, and hook him with a corner pocket safety where the cueball is frozen on the pocket rail hanging off of the pocket with 2 balls blocking his shot. Unfortunately, he is Dr. Cue for a reason and he kicks out, makes a shot, then does an insane 4-9 combo for the win. The 4 and 9 were 2mm from each other stuck near a side pocket. He whacks the 4, which combos the 9 into the corner of the side pocket, which launches it into the opposing side pocket!