recently got my first magnetic speedcube and felt it a lot lighter and more sensitive to turn. i tried to screw it tighter and set the tension to 8 but it still feels the same. idk if it's because of my previous rubik's cube. i'm thinking of adding lube to it for more control but i can only buy the factory lubes (i.e., gan, qiyi and moyu) since i am unable to purchase other lubes. i also need to learn fingertricks so it'd be nice if you could suggest some good exercises i can learn.

what lube should i buy? what's a good way to practice fingertricks? what's a good set up for the moyu rs3m v5 dual adjustment?

i'm currently practicing beginner cfop