I have owned a Knight Disc Elite. And it is a great rifle. But it is not an LRH. Most people(including myself) who bought the LRH knew exactly what they wanted when they bought it. So you probably will not see alot of used ones out there.
Is the LRH a little heavier?? Yes it is. But I also hunt big game with varmint weight rifles. I prefer a heavy rifle for the type of hunting I do. And the LRH is a rock solid rifle, and a rock solid performer. And I can not stand a Tupperware stock. The LRH has a very strong laminate stock. It is a bit bulky, but it is rock solid, and feels great in my hands. Tom.