Thanks captain_winters and lewm. I used the Sound Level Meter and Meter Bridge in the SignalScope app, along with the Oscilloppoi app to fine tune the azimuth. I know you can't get it absolutely 100% even for crosstalk levels, but I was able to get it very, very very close.
SignalScope FFT Analyzer for Setting Azimuth
Has anyone used the FFT Analyzer function on the SignalScope program and tracks 2 & 3 on side 1 of the Analogue Productions Ultimate Test Record to set azimuth on their cartridge? Which measurement do you use for measuring the crosstalk? Is it Standard Deviation, Varience (Unbiased) or something else?