Thoughts:
1. The YJ YuHu V2 M is the exact same megaminx I used and loved. No comment other than it's restored to main status.
2. The MeiLong 6x6 V2 M is really incredible. It's smaller than my backup main 5x5 at 61mm, and it's fast, stable, and easy to use. Unfortunately, I was trying to lube the hardware and I popped a bit of it, but I should have it all back together by tonight.
3. The YJ MGC SQ-1 has to be my new obsession. The layers are light, the slice is definitely not the best in the world but definitely still a decent speed, and in spite of what people say about the lack of edge magnets, I feel like the fact that the cube skips over turns that are impossible is actually quite helpful for me as a beginner.
4. The QiYi MP is incredible. I noticed it is louder than the Tornado V2, so I plan to foam-mod it (stuff the corners and edges with tiny pieces of sound-deadening foam, which fills hollow space without adding too much weight). The corner-cutting is on par with our modern cubes, and I feel like the stock setting of axis distance 3 works well for me.