Can you give a bit better description of what they are or not doing,
did you change the wiper arms, blades, or the entire wiper motors ?

don't ask leading questions , IF they fitted correctly then the should
"glide"
not gliding would suggest trying one of them on another brand and
observing the results.

I know with my EA some brands were too ridig, other to slack  and some just
missed a large area which i think goes back to being too rigid. I bought a
set  reasonably pricerd from Autobahn that seem to be just right, and a
cheap brand they also arent effected by heat up here in Queensland a product
named Auto car replacement blades in a red and blue pack

Peter

need some carcinogenic trichloroethylene to wipe off the rubber residue off
the glass, glides like silk then :)