I am quite active on reddit (usually) and am one of the people who often discusses coconut oil and/or LP. I've used it on a variety of leathers with success all around. It's a very powerful conditioner, doesn't darken much, absorbs easily, and provides minimal water protection. I've used it on all my dry shell, in very thin layers of application. It can darken if you overapply (which is easy to do). Coconut oil has historically been used to soften and condition dry and hard leathers, but it's availability has been limited geographically. It's very stable and penetrates well. Unfortunately, I don't have long term studies, because no long term studies exist. I can only cite that some of the best conditioners on the market use it, and my own experience validates that. LP is another matter, although I'd be happy to discuss it. I generally recommend against it because it's not a necessary product for most people (unless they actually work in their boots).