For Azimuth optimization I really like the The Clearaudio Azimuth Optimizer Test Record. Since it has two entire sides that play the left channel then the right channel, over and over again. I use an oscilloscope, but a multimeter will also work. It makes it easy, since you have an entire side of alternating channels to optimize the crosstalk. Plus you can also see if your crosstalk changes as you get closer to the spindle.
