i used to use GTS3m for 3x3 main, but it feels too blocky, so i use Gan 356 x now and im doing better!
In case anyone is wondering, my setup is weight 4 and lubicle silk on the tracks.
I lost my SM at Florida 2019 (2 days ago), and I traded a couple cubes for a GAN 356 Air, and then I traded that for a 356 S v2. Neither were good as the SM, but I might buy the 354 M and see how it goes.
I have a lot of cubes that i could easily use for my main. Nova GTS2M, Gan Air SM, but the one that sticks out to me the most is probably the Huanglong M. IDK why, it just sticks to me. Shoutouts to all the peeps who still use the same cube as me.