MM, MC, or MI cartridge

Yes, MI types have been given short shrift here. No, they are not the same as MM. Any vinyl aficionado ought to listen to a few different MI types. Unfortunately, only Grado and SoundSmith continue to build them in the modern era. MI types have lowest moving mass, can have medium to high output and high compliance. Inductance is lower than MM and higher than MC. Acutex, B&O, and a few others made excellent MI cartridges back in the day. 

@rvpiano -- Don't toss that Virtuoso!  It is basically an AudioTechnica VM95 body.  You can easily replace the cantilever and stylus with any AT-VM95 stylus.  I've done it, as have many others.  I replaced the stock stylus with an AT-VMN95ML microline stylus.  Very nice improvement.  There are several guides on the internet on how to do this.

Thanks so much for the tip (no pun intended.)

I went from MM to MC and love it. Pro Ject X2. Sumiko Moonstone MM to Hana SL. 

All of the above advice is anecdotal (a story told by one person with no statistical validity). The best the op could do would be to read up on the 3 different transducers, and then listen for himself. It takes time and effort to figure out what suits you best.