Well, to be fair, if you are wanting a pack to carry better than 100lbs constantly then you are going to be looking at a Barneys external frame Freighter, not the MR internal frame.... I don't disagree that MR makes pretty good stuff, but they haven't really kept up to advancements in materials like newer companies have. And newer companies don't farm their gear out offshore and have them mass produced like MR does now. There is a definite difference in quality of workmanship and materials between a Ranch pack of 10 years ago that was made in Bozeman, and one made now in the Philippines.
While I respect that you guide and see some gear, some of us use gear too....
As a sheep hunter, I've long lived with the knowledge that if you take care of the ounces, the pounds will take care of themselves. If I can use gear just as strong, just as tough, just as long lived, that carries weight better, that transfers the load better, AND save POUNDS, then I can get farther back into the hills and stay longer.
But to each their own.... I myself don't really care what anyone else carries, if they are tough enough to carry their own weight. I just know what gear I choose to use, after trying a lot of different stuff. However, the OP did ask about options on high end gear, so I purely offered opinion after having actually used it all...