My go to boots for the Whites are Merrill Wilderness. I believe they are similiar to Limmer boots, maybe a little softer. I find that I can roll my ankles on occasion, but I always seem to "catch" them before any damage is done, this comes from experience. When I'm on steep talus or "use trails" out west, I wear lasportiva makalues. Theses are much heavier and very stiff. I have never "rolled" my ankles in my macks. I find the security on loose unforgiving terrain offered by the heavy stiff boot, worth the weight and peace of mind. I tried trail runners and was very uncomfortable in them, my ankles rolled at will and I saw trouble looming, so they are not for me. Maybe its an issue of what you start out in, I see many trail runners out there and the people using them swear by them and scoff at heavy boots. One size doesnt fit all, thats for sure.