Thanks for the reply, ny biker! I lean forward somewhat, and find that a very slight upward tilt of my saddle keeps me from sliding forward. That wasn't the case until I found the Lithia saddle with the large cutout; it lets me lean into my handlebars a bit more than maybe necessary on a hybrid, but I seem to get more power that way. Somehow, that straight-up position makes me think of Miss Gulch. I can relieve the sit bone pressure by sliding my fingers under my sitbone on one side or the other, but that's obviously only practical for a short period on a straight, flat ride - we don't see many of those here in western PA unless it's a rail trail. The discomfort goes away within minutes of getting off the saddle. I don't recall my sitbone measurement but will get that again in another fit. I was measured by a woman fitter in Burlington, VT who steered me to the lithia after measuring me. Maybe it's fitting, maybe it's saddle, but I just was wondering if the artificial hips mean my fit would be somehow different because of them. Thanks for ANY insight you can give!