I only have two 3A pairs, my Echos and PSGs. Booth are great for 3A.
I think Code 2s would be good for 3A, but I think people have done that before.
One pair I found like was my Gnarwhal and Code 2 together. They’re two of my favorite yoyos and they seem to just work well for me. The Code 2 had spikes in. I don’t use that pair often because I’m afraid I will ding them up.