I'm trying to learn a bit about this option. Looked in the CAD repository, but can't still get pics of it. Looking to get a new chair. I have a ZRA with special curved support bar behind my legs, allowing me to "kick"propel a little around kitchen. I have fold-up tubular foot rests. Don't think I'll be allowed to get another titanium. They SAID the only reason I got THIS one was because they couldn't weld the curved cross piece on aluminum. Anybody have pics of the flip back showing clearance behind feet? Thanks!