I dunno about 1-2 inches behind the balance point, most pros hold the cue way in the back, usually at least 5 inches past the balance point (although the balance point for most every cue is different). From what I hear the most important thing is that wherever you hold the cue, you want to keep the weight of the cue in front of you throughout your entire stroke, so you can use the weight of the cue plus your forearm for the shot, rather than using muscles to pocket a ball. Pay attention to how the pros do it, watch Efren. For ever shot he doesn't flinch a muscle, he just lets his cue do all the work for him, he touches the cueball instead of hitting it.