I recently ordered a ghost DM2 and popped off the caps to use the light kit. But now since popping off the caps I’ve noticed that the caps don’t stay on nearly as well as they originally did when I first got the dm2. Sometimes when I bind I can still see the caps spinning! So that must mean the caps aren’t stuck in place and are spinning this makes a loud whirring noise and seems to have added vibe. I would think this is a very common problem with DM2s.