I can do em on parking blocks but I've never done one on a quarter pipe. I don't like fakie manuals, so I definitely don't want to do one going down transition which is basically what that trick forces you to do. I can't do pivot fakies for the same reason. Blunt 180 out either way is a million times more forgiving. Once you can do those you can basically do blunts on curbs too so I think they're more worthwhile to learn