I've only had one pair of Ultraboosts... and as good as they felt under my foot I never enjoyed any walking/running in them. I could never figure it what it was but that makes sense to me. I'm not at all a runner so all the heel drop talk and information never meant anything to me, I figured it was runner nerd stuff, haha.Yeah, I can believe it. Some of the shoe styles look really bad for actually walking. I think that's what led to my knee issues with Ultraboosts. I don't like the massive heel to toe drop that those shoes have. It always makes me feel like I'm walking downhill since they force your feet downwards, and walking downhill for an extended length of time also makes my knees hurt, so it made sense to me why those types of shoes don't work for me.