I am large, and have ridden all of these at DL. I am a size 24 on bottom, and 26 on top, and 5'11" tall. My weight is pretty evenly distributed. I have have been able to ride everything at DL. I was uncomfortable on Winnie the Pooh ride due to not enough leg room, and SM always make me feel huge, but still can ride it. BTM is just a lap bar and very easy for pooh size people, and I have not been in Incredicoaster, but did ride it before they rethemed it, and was very comfortable. This one had the pull over safety constraints, and I had no issues with it locking (I am a large chested woman).