Mine SUCK!  (Pardon my French, Phillippe)

I'm real dissappointed in the windshield wipers in both my 87 and 88
Vanagons.  They seem to smear, or chatter or both and just do a poor job in
general. 
I've swithced wipers by replacing the assembly sometimes and replacing just
the rubber insert at other times.  I've tried Anco, Trico (sp?) and right now
I've got fancy "Tripledge" wipers installed that have multiple ridges on each
wiper - supposed to be made of silicon for ultimate wiping.  They're just as
bad as the rest.  They do have a lifetime replacement warranty though.  Just
send in the wiper and about $8 for S+H and they'll send you a new $10 wiper!!
Some warranty!

I've checked to see that the wiper sits square against the glass, it does.  I
also theorized that the wiper wasn't pressing against the glass hard enough,
so I removed the arm and shortened up the spring attachment clip to get a
little more spring tension.  This did not help.

No, I'm not just overly wiper-sensitive, I've driven in plenty of cars where
I rate the wipers as just fine, but not my Vanagons'.

Any suggestions?

Regards,
Jim Davis
87 GL Syncro
88 GL Wolfsburg