I think I may have only posted this to RAD, but I bought a set of PIAA
"super silicone" wiper blades as a test, as I was disgusted with the
life I was getting from even good parts store blades/refills (Bosch,
Anco, Trico - no difference, I was getting only maybe 6 mos. tops out of
them before they started getting hard.)  I actually wore out the
silicone blades after a year - they were still supple, but the wiping
edges were starting to get worn down and they were getting a little
streaky.  By that time PIAA had started producing refills, so I bought a
pair of those and they are still good.  At the same time as I bought the
first set of PIAA blades for the Impala I also bought a set for the
Porsche and since it gets much less use those are still good.  I liked
'em so much that I bought a set for the ugly Ford truck when I bought
the refills, and I'd buy a set for the Studebaker if they came in a 12"
size.

The only downside that I do see is a little bit of "haze" on the
windshield when wiping which doesn't really impede vision but looks a
little wierd.  On intermittent it clears within less than a second after
the wipers pass over the windshield.

Normally I'd feel weird giving an endorsement to PIAA products as they
seem to be the king of gimmicky rice-boy products but the wipers are bar
none the best I have ever used.  They're especially nice for low-mileage
cars where the rubber typically degrades before the wiping edges wear
out due to actual use of the wipers, as the ones on the Porsche have
been on there since December '06 and are still good.

nate