My next goal is to get users to reduce their relay lists from an average of 20 to 3.
You don't need to trust 20 relays. You just need 1. But 3 adds redundancy in case 2 of them are busy at the same ...
I trimmed my general relays down to 4. But Amethyst keeps encouraging me to add more relays if I want content for various users in my list.
1