my 58 truk has almost 30,000 miles on it since 2010
while i do drive it in the rain, even leaving to go for a ride when it's raining, i have not used my wipers even once
we drove in light mist to heavy rain out of indy for 5 hrs on a power tour
these old wiper blades are 12'' long, on equally short arms
they don't even begin to clear my line of sight, unless i'm looking at my hood
rain-x is your friend
i apply rain-x every few weeks or at the beginning of a big trip
i use it on my dd too, don't use the windshield washer fluid, use the real stuff: wipe on, buff off