I never have to resharpen in the field because my knives don't get dull that fast and I do use them hard. I would never want to carry a sharpening stone in the field (although sometimes I do). I travel as light as possible and would rather choose a hard steel knife that does not require field sharpening. On a side note my Kershaw was not repairable. At least not possible to get it where I would want to carry it again. I gave it to a co-worker who had never owned a pocket knife, always admired it and did not mind at all that the serrations were all but gone. The serrations were all but completely removed from it from the battery cable incident.
You are absolutely correct that sharpening hard steel is a major pain but since it doesn't have to be done that often it's really not so bad, especially with a good high quality sharpener like a Lanskey. You are also correct about the hard steel blades chipping/breaking as I found out this weekend with my new Benchmade RSK MK1. I somehow put a very tiny chip in the blade while at camp. I think I did it while prying open the lid on a Sterno can which the Benchmade documentation clearly states is not an intended use and voids the warranty. In defense of Doug Ritter and his fine hard-steel knife though, it is an extremely tiny chip which I will easily hone out in about an hour with a fine stone. Also, even though the blade chipped from the way I used it, it was still literally razor sharp over almost the entire blade after a lot of hard use including digging small starter holes for tent posts in extemely dry, hard ground with a lot of rock. I was even able to slice
Katadyn Micropur MP1 water purification tablet in half on a rock right through the foil packaging. This is something I have attempted in the past with single-edged razor blades and the RSK did a better job due to the drop point blade shape that was still holding a razor sharp edge, even after a day and a half of very hard use. Today it's Monday and I'm back at work and most of the blade still shaves the hair on the back of my arm. I wouldn't even consider bringing a field sharpener for this knife unless I was going to be gone for a week or longer and doing a lot more digging, prying, and cutting on rocks. Plus if I was in the feild for a week or longer then I think I'd have time to sharpen even the toughest steel with a small diamond sharpener. Since we consider most survival situations to be three days to one week at most, I see no need to carry a sharpener in your kit if this is the knife you carry.
I realize there are benefits to both hard and soft steel but all-in-all after about 25 years of working with almost every variation of field knife known to man, I'm giving Doug's Benchmade RSK MK1 two thumbs up! It's extremely hard steel (hardest I currently own at rc58-60), very light weight at 3.6oz and is one of the few folders that has a locking mechanism that I actually trust for really hard usage.
Thanks Doug ... It was worth every penny!