Glad to hear you're happy with these wonderful pieces of plastic!
Sometimes, I even aim for puddles. Just my way of saying to Mother Nature, "Is that all you got?"
The only time I've ever had a problem with them was this past Monday. After the torrential rains, over the weekend, I was using one of the MUPs in North Dallas and came up on some mud that had washed across the path. It was only about 40 feet to the other side, so I rode on through it. Just as I got the the far side, so much mud had caked up under the fender that it stopped my front wheel from turning. No amount of bouncing or banging could dislodge it. I had to find a stick and dig it all out.
++ Lesson learned on crossing mud on a road bike. ++