I've always thought the river runner was a good idea but I can't remember ever seeing one on a boat. Is the pro troll the one that makes a ring around the prop? I've seen that on several salt water boats to keep DR cables and lines out of the motor. I like to get insperation from real life boats on the water and on the road especially guide boats and in my observation almost everybody goes without. If you try it let us know how you like it.
Yes, that's the other one. I actually think it's called the Mac's Troll Prop saver. Seems like I remember seeing most of the guys with the Troll Prop saver on their kickers at Blue Creek, but I think that is because it's more easy to see. I can't remember seeing a Mac's River Runner on the kickers, but they do not stand out as much.