The Batona seems like a good starting point. Do you have an irregular gait with your prosthesis, is this what's giving you blisters? I don't know how articulated they are nowadays, but can you get a natural stride?
I'm no speed hiker by any means. I don't agree with they way the mile-counters attack trails. It's not the point of being in the woods. You run into plenty of them, especially on the AT. It seems to be prevalent with people who are just getting into hiking, as that is what the marketing industry endorses. It's the "bigger, better, faster" idea that is pushed in outdoorsy magazines. I think the best way to deal with them is to just act very nonchalant and take on a lackadaisical attitude. They will no doubt ask you where you started, where you're finishing, what you're carrying, etc... and will volunteer their printed out spreadsheet will all of their info on it. I just say, "That's nice." And if you aren't doing X miles in Y hours with such and such gear you can almost see the anxiety rising in them. They'll leave quickly after that.
I do like to walk, though, and don't spend much time just sitting around when hiking, so I end up covering a good chunk of ground, but only because I walk (slowly) all day. I'd rather have my feet be comfortable while walking, than having more stuff while in camp while sleeping.
