I don't have them pointing directly at my head but I do get a good sound image (not sure that's the correct term)
No need to point them directly, that takes a bit of experimentation as that can be determined by the dispersion pattern of the speakers plus reflections in the room.
A sound image is basically having the instruments in their proper place relative to each other. For simplicity's sake, let's use a simpler set-up: vocalist front and center, guitar on one side and another in center or the other side, bass guitar in the center, percussion a bit behind the vocals including the bass drum and drum rolls pan well proportional to the other instruments.
Now, a few other points:
1)
Depth is hard to achieve. Your drums might not necessarily be that far behind the vocals, but as long as it is, consider that acceptable. Other speakers create an illusion of depth by pushing vocals way too far forward., but you'll notice that the really, really good speakers do more of pushing the drums farther to the back of the stage.
2)
Everything is proportional. Only the best set-ups can be at 1:1 scale to an actual live performance, and even then, not all of them - it may be 1:1 to the size of a small band in a jazz club, but it's not going to be proportional to a full orchestra, or Metallica in San Francisco with a full orchestra. That depth in the placement of the drums? No need to actually be 1.5m behind the vocals, especially if the speakers are only 1.5m apart. Same thing with headphones - it's all to scale at one's head.
3)
Relative Positioning. Aside from proportionality, as long as each instrument is in a proper place relative to the rest (use the vocals as the reference point), then it works. I've tried some systems that put the bass drum away from the rest of the drum set and sounds like it's coming from in front of the vocalist; in another, the drum rolls went around my head, whereas the vocals and guitars were all in front of me, which makes it look like the Fantastic Four formed a band with Sue using invisible force fields to suspend drums around the center of the audience (where a listener at home should sound like), then Reed started pounding on the drums by stretching, all the while Johnny and Ben stayed on their spots to the left and right of the stage.
4)
Imaging may not have been a factor in recording, and even when some care was taken to follow proper stereoscopic positioning, not much care will be given for depth. Some albums' recording quality just sucks - pop albums will really have no sense of depth, for one. I've also listened to some rock albums where everything sounds like is in the center (like it's recorded in Mono). Also, electronically amplified instruments won't stage as precisely as acoustic instruments, since the amplifier has its own speaker. No matter how you position that in the booth, as long as two microphones are running, the speaker on the guitar amp's speaker will not be as precise in locating it as well as an acoustic guitar would be (and if you use only one the sound can get pushed too far to one side).
Read up on stereoscopic recording, a lot of what counts as proper recording will have an effect on the imaging on playback.
Agree that the Chesky disks are some of the best for exploring what stereo reproduction is capable of. Most people have no idea how 3 dimensional a sound stage can be. Another standard for assessing your system is recording, http://www.amazon.com/Symphonic-Dances-Rachmaninov-Op-Grieg/dp/B000009IG7/ref=sr_1_57?s=music&ie=UTF8&qid=1408013017&sr=1-57&keywords=symphonic+dances+rachmaninoff 
