Given that you’ve cleaned the bearing and maxed out the gap, it sounds like you need to work on keeping the string centered and the yoyo straight. With a hard, straight throw, a Dark Magic can be made to perform any trick out there.
I have the same problem with the bearing as well but I cleaned out then played it for a day which it works fine. BTW, I have another problem with my DM. After a week or so the caps on the side keep falling off. Its that normal for a YYJ yoyo??? If doesn’t feel like it fits at all, because it super loose. >w<
It is normal for a YYJ’s yoyo caps to fall off. It happens with my Journey all the time. It’s actually good because you can thumb grind without them in. So if you haven’t learned thumb grinding go learn it, their really fun!