is it safe to say that the "spin test" is kinda dogshit?
I have read a lot of people on here say "dont go by that" and also from my own experience, i have had bearings that didnt do amazing in the spin test but did fine otherwise. i think it is worth noting if you hear the bearing make that horrible "non spinning" buzz out sound, clearly they WONT work well.
this homey at my work gave me some bearings he used in his RC Motorized Longboard thingy. I didnt put them on any "serious" setups for a long time, were just kinda on the back burner cause they were seemingly performing poor in the "spin test". set them up and they are actually so good and they are seemingly never going dry or getting any crap inside them to slow them down. i think they are just very well lubricated with good shields, and low tolerances / small gaps between ball + space it sits inside, but not overly lubricated to the point they are "swimming" in oil and actually slowing the balls down. the guy that gave me them is an engineer type dude, really good at building stuff, so it wouldnt surprise me he keeps all his shit super pristine.