Yup KAT. That was me. Pix seem to have disappeared from my gallery but I'll see if I still have the originals.
Basically, when I got the VX, the weatherstrip on the drivers window bunched up & tore. So, I cut it off where the front track goes virtical (basically the top of the tweeter pod) & removed the entire front section. I then just glued some felt to the sides of the channel. It was intended for a temporary fix that worked well enough that I never went back and did a permanent repair (even though I have a replacement weather strip sitting in the garage ala KAT).
I also meant to add a second layer of felt to the inside edge of the channel to get a tighter fit ... but again, the repair worked so well that I was reluctant to mess with it.
Originally, I intended to also lay a layer of felt in the bottom wall of the channel (where the edge of the glass would ride) but found that wasn't needed either.
Now, the passenger window is another situation entirely. I'm having the same problem samendalk is encountering. Those ^&^%$&^% track guides are FUBAR. I've tried to add spacers to shove the mechanism against the track. It worked for a while but is no longer working. I'm contemplating the bungie cord fix but would prefer replacement track grabbers.