Gary...there are a number of cartridge alignment accessories that can help you dial in your cartridge more accurately. Here are a few for you to consider and read up on:
1) Feickert Universal Protractor ($250): http://www.musicdirect.com/p-7032-feickert-next-generation-universal-protractor.aspx
2) Fosgate - Fozgometer Azimuth Range Meter ($299): http://www.musicdirect.com/p-1278-fosgate-fozgometer-azimuth-range-meter.aspx
3) I'd also make sure you have a decent stylus force gauge to make sure your VTF is set accurately. Something like this: http://www.needledoctor.com/AcousTech-Stylus-Force-Gauge?sc=2&category=423
I am by no means a vinyl expert, so if you are in the same boat, it may make sense to also just have a local turntable setup expert (either at a local dealer or audio club) come check out your set up. Otherwise, you can try using the tools above and get Michael Fremer's DVDs for turntable set up and see if you can dial in your cartridge alignment just right. just figure on a lot of trial and error until you get there.
Good luck.