Yeah, I should probably go for a magnetized 3x3 but I don't want to spend $50 on one and I'm not sure about doing it myself. The MoJue M3 is another option that I had not considered. And regarding
@phreaker advice about non-squared corners cubes... well, I have both a Thunderclap v1 and an Aolong v2 and also a Weilong GTS but the GTS is too unstable and the other two feel a bit... dated? I would have to go back to them and try. At least the Thunderclap v1 can be bought in stickerless.
Not sure if the issues with squared corners catching will be present with all other cubes or a more stable one would avoid them while also preventing corner twists.
Oh, and I did some solves with my GAN 356 Air and now I remember why I hate is so much. It does not catch like the Valk but it, instead, turns in unexpected directions if not accurate and also, at times, it rebounds quite strongly when cutting significant angles. All in all I'm terribly inconsistent with it. I can get very nice times but also terrible ones. It happens to me with this cube something that I haven't experienced with any other. OLL/PLL algs that apparently were correctly executed but end up with a messed up cube, because at some point the cube turned wrong and I barely felt it (maybe it just cut on the wrong direction or something like that, I really don't know). Maybe it's just me turning very inaccurately.