I have a 10-Ball, SPEC, Center Trac, Konkave Ceramic, Crucial Grooved, and YYJ Speed. Honestly, I’ve been playing and swapping bearings a lot lately. I find it VERY DIFFICULT to believe that each bearings play minimally different, and that I should just play with the one it comes with and leave it at that.
I find that concave’d bearings spin much longer than non-concave’d bearings when doing tricks, no matter how hard you throw a sleeper with 10-ball or SPEC. With a non concave’d, I can throw a yoyo and start doing tricks, it’ll spin only half the time of if I were to use a concave’d bearing - Here’s why; With a 10-ball bearing, I can only do about 3 different trick variations/combinations before the yoyo spins out before even attempting a bind. With a Center Trac bearing, I can do 4-5 different trick variations/combinations and still bind it onto my hand.
The Center Trac is rated my top pick for any bearing out there. This is just my thoughts after experimenting and playing a lot.