I stripped the window and lock linkage etc from my doors and saw the front and back channels that hold the glass in as it goes up and down do no have any remaining "fuzz" in them. I also see that that fuzz is not available to purchase. I feel it should have it and was wondering what you guys were using? Also what are your thoughts on that nasty plastic curtain that is in there> Does it actually work - is it needed? As probably with all of them after time mine are there but are dirty, torn and seem like they just wad up. Bruce