Ok, a quick update, be very careful with changing lamps in the cold as there is a risk of damaging the screw bosses easier, I'd recommend either doing it in an enclosed and insulated/ heated garage or waiting until after winter.
The wiper still requires a certain amount of fluid to be sprayed first before wiping, so I guess I really didn't use it that much before hand to remember this.
However the critical difference is that due to the stock wing being shorter the spray nozzle is pointed straight down as opposed to being pointed inwards toward the window. This causes it to spray mostly past the glass, where as the new one has the slot in a different position pointing into the glass so it fans out properly as opposed to spraying straight down.
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