Good point. Those damn prindle rudders don't stay up well enough for trailering unless you don't mind grinding off a few inches from the tips when they hit the pavement at 55 mph. They barely stay up when bringing the boat out of the water on the cat trax. They work well when sailing however. As far as removing them..the pintels on the P18 and P16 are much harder to remove than the P19 and 18-2. There just isn't a lot of room back there to get your fingers in to pull out the split rings or cotter pins. Stay away from the quick release pins. I've had them come out while sailing!