Thanks for your great question...
I don't use winter blades on my 04 but I have had similar problems with my blades wearing in rain, it happened to me a few times driving in an all day rain on long trips, my blade started to wear on my drivers side window up at about 11 o'clock leaving a black rubber trail/smear about 4 by 1 inches long and my blade started skipping over the buildup making noise even with a pouring rain, I stopped in a gas station and tried to clean it off off with some rain X I had, it helped for a while but then it started building up again...I never had a problem with my passenger side blade or when driving locally in the rain just on extended periods of driving in the rain...Having a 23" blade might just work because I don't think the last inch of 24" blade hits the window angle properly, maybe even a 22" might work without obscuring your vision