Records with the most detail?

Hey folks,

I just got a new stylus for my Technics SL-120 (SME 3009 + Shure V15 III), the Jico SAS/B. So far it sounds amazing. One of the touted aspects of this stylus is that the needle is shaped closer to a cutting stylus, so it can get deeper into the grooves and retrieve more detail than others. I'd like to do a Pepsi challenge and put it to the test against my other cart, the Ortofon 2M Blue. I want to find recordings that would push the physical limits of tracking a groove.

What are some records that are known to have significant sonic detail in the grooves that would be worth getting? I enjoy most types of music, so I'd appreciate any suggestions you have. I'm familiar with a lot of audiophile stuff, like Steely Dan and whatnot... Looking for recs that are lesser-known.