Is it possible that the coeff of the items you find in-game is linked to something the player can do something about?
I.E.: Could it be affected by what disguise you use, how many games/levels you've played since the last coeff5/6 you saw, what mode(s) you're playing the game in, what your average score is, etc.?
I was thinking about this the other day. Because I mean, coeff 5's and 6's are certainly rare, but I wonder if Motiontwin built into the game anything the player can do to increase the chances of one showing up?