I use one of the off the shelf windscreen products 'Rainex' I think its called, to improve wet weather visability. I apply it after cleaning and when rain hits the screen it instantly beads together and races off. Its remarkable stuff and at times I've not even bothered with the wipers it's so effective. It needs reapplying every couple of weeks. Worth considering!
Last edited by HindmostAttitude; 15/09/10 09:05 AM.