There’s the flat surface vs the sloped inward surface which I think could allow the butt bones better comfort but I’m not sure. My brother in law is a paramedic and said many seniors gets stuck inside a toilet seat so this is very important. The cushioned ones don’t come with an open front and I think or assume that an open front will allow more area for positioning and washing with the hand sprayer . My parent also has a lower butt bone protruding from muscle loss so I prefer cushioning and am considering simply buying a large sheet of gel foam and making a large wide cover but only found motorcycle seat gel cushions which are 9” . The gel stick on cushions aren’t supportive enough even if I double them. Has anyone found a company that combines elongated cushioned open front toilet seat?