How many relays do you have? What's your performance like?
For me, I have 18 relays now. Snort and Amethyst are extremely slow for me. I get a lot of lag and the experience is just not very fun to be...
Im using the default on Iris plus added a couple of paid to get to 15 and not getting much lag or Spam. I think Iris does something in the background though to filter out spam.