Manicben was using the blue D2 in our unranked tournament yesterday. We noted the stickiness problem with his fresh D2 before we started, it was definitely there. But we can also confirm that it didn't seem to have an effect on any of the results. IE: there were no times that the game ended with no bursts even though the bey had unclicked all the way.
The real problem, I think, was with basedsamurijj's M2. We tested it out with a couple of different accels (the only driver it 'sticks' with from what we could tell) and it was dang near unburstable. Important to note that I don't know if this was just the parts natural burst resistance or some interaction between it and the Accel driver. More testing is likely necessary.
A shining sword of justice and friendship, slice them to pieces, Xcalibur!