Soundsmith has a few that you would be wise to check out. I've had all MC over the years but my next cart will be a Soundsmith for sure. If you're the least bit technical minded then watch Peter Ledermann explain phono cartridges https://www.youtube.com/watch?v=F65mODzn4Gk&t=1559s
and even if you're not, just look at the photo at 25:13 and realize that's a very small MC on the left, Soundsmiths BIGGEST on the right. That right there is huge.
I have the same Herron. You do not need .5mV or higher. My Koetsu Black Goldline is .4mV and works beautifully. Many of the Soundsmith are .4mV as well.
and even if you're not, just look at the photo at 25:13 and realize that's a very small MC on the left, Soundsmiths BIGGEST on the right. That right there is huge.
I have the same Herron. You do not need .5mV or higher. My Koetsu Black Goldline is .4mV and works beautifully. Many of the Soundsmith are .4mV as well.