I have n Invacare TDX - Spree and after 2 tries, got a seat and footrest my body likes and can do the most with, The first, a gel, concave seat, I called the toilet seat held me down and the elevated swingaway footrests furthered this. My self toileting days looked bad. Man, it was really wrong , and despite a set-up perhaps intended for someone who had lost much and had to be PUT in a seat and was bigger, it made my leg (upper thigh to knee) ache, my sciatica worse, etc. Hated it. My butt is still small enough so sinking in that seat was WAY down. Now I have a more upright seat, foam, air (seat adjust with air valve that inflates and deflates by self - $$$$$$ but I got free - man, I am a squeaky wheel- and some gel where tail bone is, flip up horizontal foot plate had much less pain, mobility,can self-toilet with less problem, etc. Oh, and discovered toilets come in heights, being short could not fully touch floor, insisted we junk new pretty on for 3 inch shorter one (used in Elementary school bathrooms - man, I am short (5' 3/4") but feisty) - New toilet's seat was wrong, paid for new wood Beamis. ( Being Handicapped is expensive but what a difference (though DH thinks me a Princess and a Pee!!!!!!!!!) . My point - fight for what is right (for you) We are all different.