I made the switch. I've had Lowa Tibets, Meindl Vakuum Hunters, and Kennetrek MEs. The Lowa Tibets are the only boots i still have. I switched to the Quests specifically because of the weight savings. It's only one pound, but man does it make a difference. I've come to learn that the one issue i need in any boot is that the sole is rugged enough so i don't feel sharp rocks or pebbles under my feet. I think a lot of people wear too much boot and it lets them get a little sloppy vs wearing a lighter boot and having to concentrate on their foot placement and how to stabilize their body using those fast twitch muscles. I say go for as light of a boot as you can comfortably get away with. I would make the same decision over again and again. I can feel a difference in fatigue levels at the end of the day, especially in my hip flexors. I say go for it. The Salomons are not a huge step down from mountain boots, but i think they're a perfect middle ground from Mountain Boots and Trail Runners.