The small almost perfiectly round drops on the windshielsd are easier to look thru than the thin sheet of water between wipes.
I wonder if your wipers are not so effective, then.* Up here, leaving small water droplets from mist, fog, light spray, etc. is a sure way to miss seeing that crab pot buoy you just ran over and*got its line*wound around your prop.*
Wipers are the only thing that give us the crystal clear, totally unobstructed view foward that we need.**The steep, closely spaced wind waves we get here can*do a superb job of hiding debris in the water until you are within*a boat length or so from it.* The*droplets on a Rain-Xed windshield that are too light to run down on their own can make seeing this stuff almost impossible.* As can the*rivulets of water running down the windhield as a result of Rain-X.* In water without a ton of crap in it, it probably doesn't make much difference.* But it sure does here in our experience.
Wipers are the only way to get a clear, unobstructed view of what's in the water in front of us.* For whatever reason, the wipers on our boat are extremely effective.* That may be because we have to use them so much.* Even on a nice sunny day, the wind can whip up waves in Bellngham Bay that require all three wipers to be going continuously the whole five miles across.* So far as we can tell, there is no thin sheet of water that we're trying to look through between wiper strokes, just clear glass.
We got a crab pot line caught on one of our rudders once.* I have no idea how it got onto the rudder without being snagged by the prop in front of it, but we were very grateful it didn't.* But the pot had been "hidden" by mist on the windshield.* This was during one of our Rain-X experiments-- we didn't have the wipers on so we could see how the mist on the windsheld would behave--- and is one of the motivators we have to never opt to use Rain-X in lieu of wipers, at least not in the waters we boat in.