Where is the problem? Tracking error?

I checked my alignment with the Mint LP. Suprisingly, it was close to perfect if not as perfect as it could be. I did not touch it. It turns out the guy who set up my turntable is the best in my area. It took him over 4 hours to do it. I never knew that. He told me that it is not always what you can see that can cause problems, he said it is what you cannot see inside the cartridge that could cause problems. It does track pretty decent up to those very last grooves and that is where I hear most of the distortion. The Cardas cables are better than the JPS labs that I was using. I do have some Audioquest Opal interconnects I may try just to see what happens. They are old but could tell me something.

He did tell me that I should learn how to do it because he could have a heart attack someday. He told me I shoud get the VPI Classic. He said it is the best sounding table he has had at his shop since he opened it. Has anyone heard the Classic?

I do have the mint and it did make a huge difference. I posted this thread because to me, it seems that everything I mentioned has a huge impact on the music. Someone mentioned about Benz Cartridge traking being somewhat varied, I totally agree. For me the VTA makes a huge difference. I do not have a 20K turntable, so I do realize the limitations. I do believe that my system does provide, to my ears, a suprisingly believable presentation. I have season tickets to the symphony orchestra so I know what that sounds like. I was just curious to what people think is the biggest culprit of tracking error. I think a lot has to do with the Cartridge alignment, obviously, but also the tonearm and platter I feel have an huge influence on the big picture.

thanks for your insight.