squeaking windshield wiper - too much arm tension?

I have an '04 Accord EX sedan. The driver's side wiper makes an annoying,
loud squeak at each end of its travel, no matter how much or how little
water is hitting the windshield at any given time. The dealer changed the
inserts, but to no avail. Next they tried adjusting the tension. No dice.
(Just what they did, and to what, I do not know.) After that, I checked the
tension myself. Lifting the passenger side wiper, the tension feels
"normal," but the driver's side tension feels enormous. One time I lifted it
it slipped out of my hand. I believe that that pressure of the wiper blade
(insert) upon the windshield is causing the squeak. The service advisor told
me to bring it in again, and we'll first see if other cars have the same
problem....

In advance of that, I'm surveying you who have '03's to '05's to see if the
tension of the driver and passenger wipers is as disparate as mine, and if
you're enduring this same squeaking.

Howard