I bought two pairs of Mtn Khaki's for the 2007 Expedition Trophy. They lasted that trip, before both of them developed two pin holes. I returned them to Orvis where I got them no questions asked.
Since then, they seemed to have gained in popularity quite a bit. Maybe I got a defective set, or maybe they (The holes) were caused by an unscrupulous salesperson with a box cutter...Who knows. I do know that they were very comfortable and the pockets were very easy to get in and out of.
Maybe it's time to give them another shot.
I have also started wearing Sitka Ascent Pants in the Dune Color. I can't say enough of them. They feel great, wear great and offer tremendous movement and comfort.
I like a pant that can take a 200 day season through Alaska.
http://www.sitkagear.com/