While i was in Victoria last week, on the odd occasion there was a sprinkle mine worked really well, in fact i recall thinking.. one less thing to worry about...bloody getting annoyed at my wipers in shitty to light rain, they never come on, gotta always play with manual adjustment arghhh
Out of interest, did you get anything applied to your windscreen when you had the car protected? like a spray on sealant? I wonder if they affect the sensors in the windscreen?