I've read the existing threads, but I would like some specific advice. I am looking at a Brooks B17 or B17N for my commuter bike. I'm a tall guy, 6'5" and around 190 lbs. As a fact of the way bikes are designed for larger sizes I have a large drop from the saddle to the handlebars (not sure how much, but many inches). It's not really uncomfortable (which, for some reason, I hear is usually the case with tall people). But it makes me wonder if I should get a B17N for less thigh problems while pedaling. I measured my sit bones at home to be around 125-130 mm (I know, not terribly accurate). I don't care about speed or weight, just comfort and getting fewer saddle sores.