Completely agree. I finally started playing with the rail system and I gotta say, it is barely useable. I could deal with the changes if it were at least consistant. As it is, sometimes the cart will go up the hill, sometimes it won't, whether it is powered or not. Sometimes it will derail, other times it won't. I can deal with silliness as long as it is reliable. But you really can't release the new rail physics as they are. Please.
They are likely not finished with the new rail system yet, just trying a few things.